Pumpkin Pasta with Toasted Walnuts and Spinach tastes creamy, nutty, a little garlicky, and just cozy enough to feel like a sweater in bowl form. It works well for busy weeknights or casual dinner guests, and you can get it on the table in about 35 minutes. I first made a version of this on a chilly Tuesday when my pantry looked sad, and it instantly became a regular in my house.
Why You Should Try This Pumpkin Pasta with Toasted Walnuts and Spinach
This pasta gives you all the comfort of a rich Alfredo with way less heaviness. Pumpkin puree adds body and creaminess, while toasted walnuts bring crunch and a deep, toasty flavor that keeps every bite interesting.
Spinach folds in at the end and softens into the sauce, so you get color, nutrients, and a fresh taste without extra work. The whole dish feels special enough for guests but simple enough for a random weeknight when you just want a big bowl of cozy carbs.
“This Pumpkin Pasta with Toasted Walnuts and Spinach tastes like fall comfort food in a bowl, but still feels light enough that you happily go back for seconds. ★★★★★”
Ingredients You’ll Need
Pasta and base
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Pasta:
- 12 ounces short pasta such as penne, rigatoni, or fusilli
- Whole wheat or chickpea pasta also works if you want more fiber or protein
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Pumpkin:
- 1 cup canned pumpkin puree
- Use plain pumpkin, not pumpkin pie filling
- I like Libby’s or Trader Joe’s pumpkin for consistent texture
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Broth:
- 1 to 1 ¼ cups vegetable or chicken broth
- Low sodium broth gives you more control over salt
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Creaminess:
- ½ cup half-and-half, heavy cream, or full-fat coconut milk
- You can use whole milk in a pinch, but the sauce turns slightly thinner
Aromatics and flavor
- 2 tablespoons olive oil or avocado oil
- 1 small yellow onion, finely chopped
- 3 cloves garlic, minced
- ¼ teaspoon red pepper flakes, more to taste
- ½ teaspoon smoked paprika
- ½ teaspoon dried thyme or Italian seasoning
- ¼ teaspoon ground nutmeg
- ½ teaspoon ground black pepper
- ¾ to 1 teaspoon kosher salt, plus more for pasta water
Nutmeg and smoked paprika give the pumpkin pasta sauce a savory, slightly smoky flavor that keeps it from tasting like dessert. Red pepper flakes add gentle heat, but you can skip them if you cook for kids.
Cheese and nuts
- ½ cup freshly grated Parmesan cheese, plus extra for serving
- ½ cup walnuts, roughly chopped
- 1 teaspoon butter or olive oil for toasting the walnuts
Grate the Parmesan from a block so it melts smoothly. Pre-grated cheese often contains anti-caking agents that make sauces grainy.
Greens
- 3 to 4 cups fresh baby spinach, loosely packed
- You can use chopped kale instead; simmer it 3 to 4 minutes longer so it softens
- Frozen spinach also works; thaw it and squeeze out extra water first
Optional add-ins
- ½ teaspoon lemon zest and 1 to 2 teaspoons lemon juice for brightness
- 2 tablespoons chopped fresh sage or parsley
- ½ cup cooked crumbled Italian sausage or bacon if you want extra protein
Equipment
- Large pot for boiling pasta
- Large skillet or wide Dutch oven for the sauce
- Wooden spoon or silicone spatula
- Measuring cups and spoons
- Colander
- Small skillet for toasting walnuts
- Microplane or grater for Parmesan and lemon zest
Tips & Tricks
- Salt the pasta water generously so the noodles taste seasoned before they hit the sauce.
- Cook the pasta just shy of al dente, then finish it in the pumpkin sauce so it absorbs flavor.
- Reserve at least 1 cup of pasta water before draining, since starchy water helps the sauce cling to the pasta.
- Toast the walnuts in a dry or lightly oiled skillet until fragrant, then pull them off the heat right away so they do not burn.
- Use canned pumpkin puree at room temperature if possible, since cold puree can cool the pan and slow cooking.
- Add spinach at the very end so it stays bright and tender instead of mushy.
- Taste the sauce before serving and adjust salt, pepper, and lemon juice so the flavors pop.
- Stir Parmesan off the heat to avoid clumping or a grainy texture.
- If the sauce thickens too much, thin it with a splash of warm broth or pasta water.
- If you cook for dairy-free eaters, use coconut milk and a sprinkle of nutritional yeast instead of cream and Parmesan.
How to Make Pumpkin Pasta with Toasted Walnuts and Spinach
Step 1: Cook the pasta
Bring a large pot of water to a boil and salt it generously. Add the pasta and cook until just shy of al dente, usually 1 to 2 minutes less than the package suggests. Scoop out at least 1 cup of starchy pasta water, then drain the pasta and set it aside.
Step 2: Toast the walnuts
Place a small skillet over medium heat and add the chopped walnuts. Toast them, stirring often, until they smell nutty and turn slightly darker, about 3 to 5 minutes. Transfer the walnuts to a bowl so they stop cooking, then set them aside.
Step 3: Sauté onions and garlic
Heat olive oil in a large skillet or Dutch oven over medium heat. Add the chopped onion and cook until it turns soft and translucent, about 5 to 7 minutes, stirring occasionally. Add the minced garlic and red pepper flakes, then cook 1 minute until the garlic smells fragrant.
Step 4: Build the pumpkin sauce
Stir in the pumpkin puree, smoked paprika, thyme, nutmeg, black pepper, and ¾ teaspoon salt. Pour in 1 cup of broth and whisk or stir until the mixture turns smooth and creamy. Lower the heat to medium low and let the sauce bubble gently for 3 to 4 minutes so the flavors blend.
Step 5: Add creaminess and cheese
Stir in the half-and-half or cream and let the sauce simmer another 2 to 3 minutes. Turn the heat to low, then sprinkle in the Parmesan and stir until it melts into the sauce. Taste and adjust seasoning with more salt or pepper, and add a splash of broth or pasta water if the sauce looks too thick.
Step 6: Add pasta and spinach
Add the cooked pasta to the skillet with the pumpkin sauce. Toss the pasta so every piece gets coated, then pour in a small splash of pasta water if you want a looser sauce. Add the spinach and gently fold it into the hot pasta until it wilts, about 1 to 2 minutes.
Step 7: Finish with walnuts and brightness
Stir in most of the toasted walnuts, saving a small handful for topping. Add lemon zest and juice if you use them, then taste again and adjust seasoning. Serve the Pumpkin Pasta with Toasted Walnuts and Spinach hot, topped with extra Parmesan, the remaining walnuts, and fresh herbs.
What to Serve with Pumpkin Pasta with Toasted Walnuts and Spinach
Serve this pasta with a simple green salad with a bright vinaigrette to balance the creamy sauce. Garlic bread or warm crusty bread works nicely to scoop up any extra pumpkin sauce. You can add roasted vegetables such as broccoli, Brussels sprouts, or carrots on the side for more color and texture. A sparkling water with citrus or a cold apple cider pairs well with the cozy flavors.
Storage Options
- Fridge: Store leftovers in an airtight container in the refrigerator for up to 3 days.
- Freezer: Freeze in a freezer-safe container for up to 2 months, and label it with the date so you do not forget it.
- Reheating on stove: Reheat gently in a skillet over medium low heat with a splash of broth or water, stirring until the sauce loosens and the pasta heats through.
- Reheating in microwave: Reheat in a microwave-safe bowl in 45 to 60 second bursts, stirring between each round and adding a spoonful of liquid if the pasta looks dry.