One-Pan Butternut squash Penne Recipe

Of all the culinary signals that autumn has arrived, the humble butternut squash stands out as the true herald of the season. Its sweet, nutty flavor and vibrant orange flesh are synonymous with cozy sweaters, crisp air, and the comforting warmth of a home-cooked meal. For years, I struggled to find a butternut squash recipe that my whole family would embrace. The soups were often too one-note for the kids, and roasted squash as a side dish was frequently met with a lukewarm reception. That all changed the day I stumbled upon the concept of a one-pan pasta. The idea was revolutionary: less cleanup, perfectly melded flavors, and a streamlined cooking process. After some experimenting, this One-Pan Butternut squash Penne was born, and it instantly became the undisputed champion of our fall dinner rotation. The first time I served it, the silence at the dinner table was a testament to its success. My husband, usually reserved in his praise, immediately asked for seconds. The kids, who I thought would pick out the squash, were too busy twirling the cheesy, savory pasta onto their forks to complain. The magic lies in how the pasta cooks directly in the flavorful chicken broth, releasing its starches to create a silky, creamy sauce without a drop of heavy cream. The butternut squash softens to a perfect, tender bite, infusing the entire dish with its subtle sweetness. The rotisserie chicken adds a savory depth and satisfying protein, while the spinach wilts in at the last second, lending a touch of freshness and vibrant color. This isn’t just a recipe; it’s a solution. It’s the answer to the dreaded “What’s for dinner?” on a busy Tuesday night. It’s a healthy, wholesome meal that feels indulgent and comforting. It’s the dish that finally made my entire family fall in love with fall’s favorite squash, and I’m confident it will do the same for yours.

Ingredients

This recipe relies on a handful of simple, high-quality ingredients that come together to create a symphony of fall flavors. Each component plays a crucial role, from the aromatic base to the creamy finisher. Here’s a detailed look at what you’ll need and why it works so well.

• 2 tablespoons olive oil: This is the foundation of our flavor. A good quality extra virgin olive oil will add a subtle, peppery fruitiness. It’s used to sauté the aromatics, releasing their essential oils and creating the first layer of taste in the dish.
• Half of an onion, chopped: A yellow or sweet onion works best here. The onion provides a sweet, aromatic base that mellows as it cooks. Chopping it finely ensures it dissolves into the sauce, providing flavor without an overpowering texture.
• 4 cloves garlic, chopped: Garlic is a non-negotiable for adding that pungent, savory depth. Four cloves might seem like a lot, but its flavor will soften as it simmers in the broth. Be sure to use fresh garlic for the best results; the pre-minced jarred variety can sometimes have a bitter or acidic aftertaste.
• Kosher salt and freshly ground black pepper: These are essential for seasoning every layer of the dish. We add a dash at the beginning to help the onions and garlic release their moisture and flavor, and then we adjust at the end to taste. Using kosher salt allows for better control over salinity, and freshly ground black pepper provides a more potent and complex spice than its pre-ground counterpart.
• 6 cups chicken broth, plus more as needed: This is the cooking liquid and the heart of our sauce. As the pasta cooks in the broth, it absorbs all that savory flavor. The starches released from the pasta will thicken the broth, creating a luscious, creamy consistency. It’s important to use a good quality, low-sodium broth so you can control the final saltiness of the dish. You may need a bit more if the pan gets too dry, so having extra on hand is a good idea. For a vegetarian option, a robust vegetable broth is a perfect substitute.
• 12 oz uncooked penne pasta: Penne is the ideal shape for this dish. Its hollow tubes and ridged exterior are perfect for capturing the creamy sauce and small bits of squash and chicken. Other tube-shaped pastas like ziti or rigatoni would also work well.
• 3 cups peeled/diced fresh butternut squash: The star of the show! This equates to about one medium-sized butternut squash. The key is to dice the squash into small, uniform pieces (about ½-inch cubes). This ensures it cooks evenly and becomes perfectly tender in the time it takes the pasta to finish. The squash will release its natural sweetness into the broth, beautifully balancing the savory elements.
• 2 cups shredded cooked chicken, rotisserie is great: For a quick and easy weeknight meal, a store-bought rotisserie chicken is a lifesaver. It’s already seasoned, tender, and easy to shred. Alternatively, you can use any leftover cooked chicken you have on hand, or quickly poach and shred a couple of chicken breasts.
• 3 cups fresh baby spinach leaves: Spinach adds a wonderful freshness, a pop of color, and a boost of nutrients. It has a delicate flavor that won’t overpower the other ingredients. It’s added at the very end, as the residual heat from the pasta is all that’s needed to wilt it perfectly.
• 1 ½ cup freshly grated Parmesan cheese: This is the final touch that brings the entire dish together. Please, if you can, grate your own cheese from a block of Parmigiano-Reggiano. Pre-shredded cheeses often contain anti-caking agents that prevent them from melting smoothly. Freshly grated Parmesan will melt into a velvety, creamy sauce, adding a salty, nutty, umami-rich flavor that is simply irresistible. We use one cup in the pasta and reserve the last half cup for sprinkling on top.

Instructions

The beauty of this one-pan recipe lies in its simplicity. The method is designed to build flavor in layers, all within a single skillet, resulting in a cohesive and delicious meal with minimal cleanup. Follow these steps closely for pasta perfection.

Step 1: Build Your Flavor Base
In a very large, deep skillet or Dutch oven, heat the 2 tablespoons of olive oil over medium heat. The pan needs to be large enough to accommodate all the ingredients and liquid without boiling over. A 5-quart or larger pan is ideal. Once the oil is shimmering and hot, add the chopped onion and chopped garlic. Immediately add a generous dash of kosher salt and freshly ground black pepper. The salt will help draw the moisture out of the aromatics. Stir constantly for about 30-45 seconds. You are not trying to brown them, but rather to “bloom” their flavors. The kitchen should fill with a wonderfully fragrant aroma.

Step 2: Create the Cooking Liquid and Cook the Pasta
Pour the 6 cups of chicken broth into the skillet. Stir to combine with the onions and garlic. Cover the skillet with a tight-fitting lid and increase the heat to high. Bring the broth to a rolling boil. As soon as it boils, immediately add the 12 ounces of uncooked penne pasta. Give it a good stir to make sure the pasta is fully submerged and separated. Lower the heat to maintain a steady simmer (not a vigorous boil). Cover the skillet again and let the pasta simmer for about 8 minutes. It’s important to stir it occasionally (every 2-3 minutes) to prevent the pasta from sticking to the bottom of the pan or to each other.

Step 3: Add the Squash and Finish Cooking
After 8 minutes, the pasta should be partially cooked but still have a firm bite. Now, stir in the 3 cups of diced butternut squash. The squash needs less time to cook than the pasta, which is why we add it now. This timing ensures both the pasta and the squash will become perfectly tender at the same time. Place the lid back on the skillet and continue to simmer for another 6-7 minutes. At this point, check a piece of pasta and a piece of squash for doneness. Both should be tender. The pasta should be al dente (cooked through, but with a slight chew), and the squash should be easily pierced with a fork. During this stage, keep an eye on the liquid level. If the pasta has absorbed most of the broth and the dish looks dry, add a bit more broth (or even hot water), about ¼ cup at a time, to keep it loose and create a “brothy” sauce.

Step 4: Incorporate the Final Ingredients
Once the pasta and squash are tender, add the 2 cups of shredded cooked chicken. Stir gently to combine and allow the chicken to warm through for about a minute. Now, turn the heat off completely. This is a crucial step. Add all 3 cups of baby spinach to the pan. Use your tongs or spoon to gently fold the spinach into the hot pasta. The residual heat is more than enough to wilt the spinach perfectly in about 30-60 seconds without it becoming overcooked or mushy.

Step 5: Create the Creamy Sauce and Serve
With the heat still off, taste the dish and add more salt and pepper if needed. Now, add 1 cup of the freshly grated Parmesan cheese. Stir gently but continuously until the cheese has completely melted into the remaining broth, creating a glossy, creamy sauce that coats every piece of pasta and squash. Divide the penne immediately into warm bowls. Sprinkle the remaining ½ cup of Parmesan cheese over the top of each serving. Serve hot and enjoy the incredible flavors.

Nutrition Facts

While this dish tastes rich and indulgent, it’s packed with wholesome ingredients, making it a well-balanced meal. The nutritional information is an estimate and can vary based on the specific ingredients used (e.g., type of broth, fat content of chicken).

• Servings: 6
• Calories per serving (approximate): 550-650 kcal

This One-Pan Butternut Squash Penne is a fantastic source of complex carbohydrates for sustained energy from the pasta and squash. It delivers a significant amount of lean protein from the chicken, which is essential for muscle repair and satiety. The butternut squash is a nutritional powerhouse, incredibly rich in Vitamin A (in the form of beta-carotene), which is vital for vision, immune function, and skin health. It also provides a good dose of Vitamin C, potassium, and fiber. The addition of spinach contributes iron, calcium, and Vitamin K. Using olive oil provides healthy monounsaturated fats, and the Parmesan cheese offers a boost of calcium and protein.

Preparation Time

Efficiency is key to this recipe’s appeal, making it perfect for any night of the week.

• Prep Time: 20 minutes
• Cook Time: 15 minutes
• Total Time: 35 minutes

The 20-minute preparation time accounts for all the chopping and measuring, also known as mise en place. This includes:

• Chopping the onion and garlic.
• Peeling, seeding, and dicing the butternut squash. This is the most time-consuming part of the prep. To save time, you can often find pre-peeled and pre-cut butternut squash in the produce section of your grocery store.
• Shredding the rotisserie chicken.
• Measuring out the broth, pasta, and cheese.

By having all your ingredients prepped and ready to go before you turn on the stove, the 15-minute cooking process will feel seamless and stress-free.

How to Serve

While this dish is a complete meal in a bowl, a few simple additions can elevate it from a weeknight dinner to a special occasion meal. Here are some serving suggestions:

• Garnishes for Texture and Flavor:
  • Toasted Pepitas (Pumpkin Seeds): Sprinkle some toasted, salted pepitas on top for a delightful crunch and nutty flavor that complements the squash.
  • Fresh Herbs: Finely chopped fresh sage is a classic pairing with butternut squash. A bit of fresh parsley can also add a bright, clean note.
  • Red Pepper Flakes: For those who enjoy a bit of heat, a pinch of red pepper flakes can beautifully cut through the richness of the cheese and sweetness of the squash.
  • Balsamic Glaze: A light drizzle of a thick, sweet balsamic glaze right before serving adds a tangy complexity that works wonderfully.
• Complementary Side Dishes:
  • Crusty Bread: Serve with slices of warm, crusty baguette or ciabatta, perfect for sopping up every last bit of the creamy sauce. Garlic bread is also a fantastic option.
  • Simple Green Salad: A simple salad of mixed greens, arugula, or romaine lettuce with a zesty lemon vinaigrette provides a fresh, acidic contrast to the rich pasta.
• Wine Pairings:
  • White Wine: A crisp, dry white wine with good acidity is an excellent choice. Consider a Sauvignon Blanc, an unoaked Chardonnay, or an Italian Pinot Grigio. These wines will cut through the creaminess without overpowering the delicate squash flavor.
  • Red Wine: If you prefer red, opt for something light-bodied with low tannins. A Pinot Noir or a Gamay (like Beaujolais) would be a lovely match.

Additional Tips

Here are five additional tips to help you customize this recipe and ensure it turns out perfectly every time.

1. Make it Vegetarian or Vegan: This recipe is incredibly easy to adapt. To make it vegetarian, simply swap the chicken broth for a high-quality vegetable broth and omit the chicken. You can add a can of drained and rinsed cannellini beans or chickpeas along with the squash for a protein boost. To make it vegan, follow the vegetarian modifications and substitute the Parmesan cheese with a high-quality vegan Parmesan alternative or 1/3 cup of nutritional yeast for a cheesy, savory flavor.

2. Achieve an Even Creamier Texture: While the pasta starches create a naturally creamy sauce, you can take the indulgence up a notch. After you stir in the Parmesan cheese (with the heat off), add a splash of heavy cream, half-and-half, or even a dollop of mascarpone cheese. For a dairy-free creamy option, stir in a ¼ cup of full-fat coconut milk. Stir gently until fully incorporated for an ultra-luxurious sauce.

3. How to Store and Reheat Leftovers: This pasta makes for excellent leftovers. Store any remaining pasta in an airtight container in the refrigerator for up to 3-4 days. The pasta will absorb more of the sauce as it sits. To reheat, it’s best to use a skillet on the stovetop over medium-low heat. Add a splash of broth, water, or milk to the pan to loosen the sauce and bring back its creamy consistency as you gently warm it through. Microwaving works in a pinch, but the stovetop method prevents the pasta from becoming rubbery.

4. Choose the Right Pan for the Job: The instruction to use a “very large, deep skillet” is crucial for one-pan pasta success. A 12-inch sauté pan with high, straight sides is perfect. A Dutch oven is also an excellent choice. Using a pan that is too small or shallow will cause the liquid to boil over, making a mess and potentially leaving you with undercooked pasta due to liquid loss. The extra space allows the pasta to move freely and cook evenly.

5. Master the Art of Dicing Butternut Squash: The most intimidating part of this recipe can be tackling the squash. Here’s a safe and easy method: First, slice off the top stem and the bottom end to create two flat, stable surfaces. Use a sharp vegetable peeler to remove the tough outer skin. Cut the squash in half crosswise, separating the thin neck from the round, bulbous bottom. Stand the neck on its flat end and slice it into planks, then sticks, then dice. For the bottom half, slice it in half vertically and use a spoon to scoop out the seeds and stringy bits. Then, you can cut it into slices and dice it just like the neck.

FAQ Section

Here are answers to some frequently asked questions about this One-Pan Butternut Squash Penne recipe.

1. Can I use frozen butternut squash instead of fresh?
Yes, you absolutely can use frozen butternut squash to save on prep time. Since frozen squash is already partially softened from the freezing process, it will cook faster. Add the frozen squash cubes directly to the skillet (no need to thaw) about 10-12 minutes into the pasta’s total cooking time, or during the last 3-4 minutes of simmering.

2. My sauce isn’t creamy; it’s watery. What went wrong?
There are a few potential reasons for a watery sauce. First, you may have used too much liquid, or your pasta may not have released enough starch. Make sure you are simmering, not aggressively boiling, as a hard boil can sometimes break down starches. Second, ensure you are using real, freshly grated Parmesan cheese. Pre-shredded cheese contains starches and celluloses that prevent it from melting properly and emulsifying into a creamy sauce. Finally, be sure to stir the cheese in vigorously with the heat turned off to help it bind with the remaining starchy broth.

3. Can I make this dish gluten-free?
Yes, this recipe adapts well to be gluten-free. Simply substitute the penne with your favorite gluten-free pasta variety. Keep in mind that gluten-free pastas can behave differently. They sometimes absorb more liquid and can become mushy if overcooked. It’s best to cook the gluten-free pasta for 1-2 minutes less than the package directions suggest, as it will continue to cook in the hot sauce. You may also need to have extra broth on hand, as some gluten-free pasta varieties are thirstier than their wheat-based counterparts.

4. What other vegetables can I add to this pasta?
This is a wonderful base recipe for adding other vegetables. Hearty vegetables like chopped carrots or sweet potatoes can be added along with the butternut squash. You could also add sliced mushrooms when you sauté the onions and garlic. For quicker-cooking vegetables, consider adding chopped kale (instead of spinach, it will need 2-3 minutes to soften), frozen peas, or chopped sun-dried tomatoes along with the chicken.

5. Can I use a different type of squash?
Certainly. While butternut squash has a unique sweetness and creamy texture, other winter squashes would also be delicious. Kabocha squash is a great substitute, with a similar sweetness and a fluffy, potato-like texture. You could also use acorn squash, though its flavor is a bit milder. Even sweet potato would work beautifully, offering a similar color and sweet flavor profile. Simply peel and dice any of these alternatives into ½-inch cubes and follow the recipe as written.

Print