Instant Pot Pumpkin Mac and Cheese | Fall Recipes

When I start craving cozy fall recipes, this Instant Pot Pumpkin Mac and Cheese is one of the very first things I make. It’s creamy, rich, comforting, and just a little bit unexpected in the best way. The pumpkin blends right into the cheese sauce, adding a gorgeous orange color, a velvety texture, and that warm seasonal feeling without turning the dish into dessert-like pumpkin pasta.

I love this recipe because it gives you everything you want from classic mac and cheese, but with a fall-inspired twist that feels right at home on a weeknight table, at a casual holiday gathering, or alongside roasted vegetables and simple protein. The Instant Pot makes it especially easy since the pasta cooks quickly and the sauce comes together right in the pot with very little fuss.

If you’ve been looking for cozy fall recipes that are family-friendly, satisfying, and simple enough to pull off even on a busy day, I really think you’re going to come back to this one again and again. It’s creamy, cheesy, and just fancy enough to feel special, especially with a sprinkle of fresh herbs and a few crunchy pecans on top if you want that extra seasonal touch.

Quick Recipe Info Card

• Prep time: 10 minutes
• Cook time: 10 minutes
• Total time: 20 minutes
• Servings: 6
• Difficulty: Easy

Why You’ll Love It

• It’s incredibly creamy and comforting, with a silky cheese sauce that hugs every piece of pasta.
• The pumpkin adds richness and color without overpowering the cheesy flavor.
• The Instant Pot keeps the cooking process fast and convenient.
• It’s one of those fall recipes that works for both weeknight dinners and holiday side dishes.
• You can easily dress it up with fresh herbs, toasted pecans, or a pinch of extra spices.
• It uses simple ingredients you may already have in your kitchen.
• It’s kid-friendly, but still feels cozy and seasonal enough for adults to love too.

Nutritional Benefits and Adaptable Variations

• Pumpkin puree adds vitamin A, a little fiber, and a naturally creamy texture.
• Cheese and milk contribute protein and calcium, making this a satisfying comfort-food meal.
• Whole wheat pasta can be used for a bit more fiber if you like.
• Add spinach at the end for extra color and nutrients.
• Stir in cooked chicken or turkey to make it more filling as a main dish.
• Use Monterey Jack, fontina, or gouda along with cheddar for a different cheese profile.
• Swap the pecans for toasted breadcrumbs if you want a more classic crunchy topping.
• Adjust the seasoning with sage, thyme, smoked paprika, or a pinch of cayenne depending on your taste.

Step-by-Step Instructions

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1. Set the Instant Pot to sauté and melt the butter. Once melted, turn off the sauté setting so the butter does not brown.
2. Pour in the chicken broth, then add the pasta, salt, black pepper, garlic powder, onion powder, and nutmeg. Stir well so the pasta is mostly submerged.
3. Lock the lid and set the valve to sealing. Pressure cook on high for 4 minutes.
4. When the cooking time ends, carefully do a quick release. Once the pressure pin drops, open the lid and stir the pasta.
5. Add the pumpkin puree, warmed milk, and cream cheese. Stir until the cream cheese melts into the hot pasta and the mixture looks smooth.
6. Add the shredded cheddar, mozzarella, and Parmesan a handful at a time, stirring between additions until the sauce is creamy and glossy.
7. If the mac and cheese seems a little thick, stir in a splash of warm milk until it reaches your preferred consistency.
8. Taste and adjust seasoning if needed. Spoon into bowls and top with chopped chives or parsley and toasted pecans if using. Serve hot.

Nutrition Information

Nutrition values are estimates only and can vary depending on the specific ingredients and brands you use.

Storage & Make-Ahead Tips

Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat gently on the stove or in the microwave with a splash of milk to loosen the sauce and bring back the creamy texture.

If you’re making it ahead, I recommend preparing it fresh for the best texture, but you can shred the cheese, measure the seasonings, and toast the pecans in advance to save time. If reheating leftovers, make sure they are heated all the way through before serving.

FAQ

1. Does this taste strongly like pumpkin?

No, not in an overwhelming way. The pumpkin mainly adds creaminess, color, and a subtle earthy sweetness that blends into the cheese sauce beautifully.

2. Can I use a different pasta shape?

Yes. Elbows, cavatappi, shells, or other short tube pasta shapes work well. Just stick with a similar size for the best cooking time results.

3. Can I make this vegetarian?

Absolutely. Just swap the chicken broth for vegetable broth and continue with the recipe as written.

4. Why is my mac and cheese too thick?

Pasta continues to absorb liquid as it sits, so the sauce naturally thickens. Stir in a little warm milk, a tablespoon or two at a time, until it loosens to your liking.

5. Can I freeze Instant Pot Pumpkin Mac and Cheese?

You can, but the texture may change a bit after thawing because dairy-based sauces can separate. For best results, enjoy it fresh or refrigerated and reheated within a few days.

Instant Pot Pumpkin Mac and Cheese

A creamy, cozy fall mac and cheese made in the Instant Pot with pumpkin puree, cheddar, and warm seasonings.

Print Recipe Pin Recipe

Prep Time 10 minutes mins

Cook Time 10 minutes mins

Total Time 20 minutes mins

Servings: 6 servings

Course: Dinner, Side Dish

Cuisine: American

Calories: 490

Ingredients Equipment Method Notes

Ingredients

  

Pasta and cooking base

• 1 tablespoon unsalted butter
• 4 cups low-sodium chicken broth
• 1 pound elbow macaroni or short tube pasta
• 1 teaspoon kosher salt
• 1/2 teaspoon black pepper
• 1/2 teaspoon garlic powder
• 1/4 teaspoon onion powder
• 1/4 teaspoon ground nutmeg

Cheese sauce

• 3/4 cup plain pumpkin puree
• 1/2 cup whole milk warmed, plus more as needed
• 4 ounces cream cheese softened
• 2 cups sharp cheddar cheese shredded
• 1 cup mozzarella cheese shredded
• 2 tablespoons Parmesan cheese grated

For serving

• 2 tablespoons fresh chives or parsley chopped
• 1/3 cup pecan halves toasted, optional

Equipment

• 1 Instant Pot or electric pressure cooker
• 1 Measuring cups and spoons
• 1 Wooden spoon or silicone spatula
• 1 Cheese grater if shredding cheese from blocks

Method

 

Cook the pasta

1. Set the Instant Pot to sauté and melt the butter. Turn off the sauté setting once the butter is melted.
2. Add the chicken broth, pasta, salt, black pepper, garlic powder, onion powder, and nutmeg. Stir well so the pasta is mostly submerged.
3. Lock the lid and set the valve to sealing. Pressure cook on high for 4 minutes.
4. When the cooking time ends, carefully perform a quick release. Open the lid and stir the pasta.

Make the cheese sauce

1. Add the pumpkin puree, warmed milk, and softened cream cheese. Stir until smooth and well combined.
2. Add the cheddar, mozzarella, and Parmesan a handful at a time, stirring between additions until fully melted and creamy.
3. If needed, stir in an extra splash of warm milk to loosen the sauce to your preferred consistency.
4. Taste and adjust seasoning if needed. Serve hot, topped with chopped chives or parsley and toasted pecans if desired.

Notes

Use plain pumpkin puree, not pumpkin pie filling. Freshly shredded cheese melts most smoothly. Reheat leftovers with a splash of milk to restore creaminess. Use vegetable broth for a vegetarian version.