This Instant Pot Chicken Mac and Cheese is creamy, cheesy, and loaded with tender chicken. Made entirely in the Instant Pot, it’s a quick, one-pot meal that’s perfect for busy weeknights or comfort food cravings. The combination of sharp cheddar, heavy cream, and perfectly cooked pasta makes it irresistibly creamy and flavorful.

Ingredients

4 cups (400g) dried pasta
2 tablespoons vegetable oil
1 onion, diced
2 cloves garlic, minced
1 pound (500g) boneless, skinless chicken breasts, cubed
2 tablespoons butter
¼ teaspoon ground nutmeg
1 teaspoon salt
¼ teaspoon ground black pepper
2 cups (475ml) vegetable stock (add more if needed to cover the pasta)
1 cup (236ml) heavy cream
2½ cups (250g) sharp cheddar cheese, shredded

Instructions

Sauté the Aromatics and Chicken:
Press the SAUTÉ button on the Instant Pot. Heat the vegetable oil and sauté the diced onion until soft and translucent. Add garlic and cook for 1 minute until fragrant. Add the cubed chicken, season with salt and pepper, and lightly sauté for a few minutes.
Deglaze the Pot:
If there are browned bits stuck to the bottom, add a splash of water and scrape to deglaze.
Add Pasta and Seasoning:
Turn off the SAUTÉ setting. Add the pasta, butter, and ground nutmeg. Pour in the vegetable stock, making sure the pasta is mostly covered. Add a bit more water if necessary.
Pressure Cook:
Secure the lid and set the vent to SEALING. Select PRESSURE COOK/MANUAL and set the cooking time for 5 minutes at high pressure. The Instant Pot will take about 10 minutes to come to pressure before cooking.
Quick Release:
When the cooking program ends, carefully perform a quick release to prevent the pasta from overcooking. Open the lid carefully to avoid steam burns.
Add Cream and Cheese:
Stir the pasta briefly, then mix in the heavy cream. Finally, add the shredded cheddar and stir until completely melted and the sauce is creamy.

Why You’ll Love This Recipe

One-pot, hassle-free comfort food ready in under 30 minutes.
Creamy, cheesy sauce with tender chicken and perfectly cooked pasta.
Ideal for weeknight dinners, meal prep, or feeding a crowd.
Easily customizable with your favorite seasonings and cheese types.

Tips

Prevent sticking: Deglaze the pot well after sautéing the chicken to avoid the “Burn” warning.
Cheese quality: Use freshly shredded cheddar for smoother, meltier sauce.
Don’t overcook: Perform a quick release immediately after cooking to prevent mushy pasta.
Creamy texture: Stir in heavy cream off the heat for a velvety sauce.

Variations and Substitutions

Protein swaps: Use cooked ham, turkey, sausage, or tofu for a different protein option.
Cheese mix: Combine cheddar with mozzarella, gouda, or pepper jack for extra flavor.
Veggies: Add peas, spinach, broccoli, or roasted red peppers for added nutrients.
Dairy-free: Substitute heavy cream with coconut cream and use a vegan cheese alternative.
Spicy kick: Add crushed red pepper flakes or hot sauce for heat.

FAQs

Can I make this without an Instant Pot?
Yes. Cook the chicken and onion in a skillet, then boil the pasta separately. Combine with butter, nutmeg, cream, and cheese in a saucepan.

Can I make it ahead of time?
Yes, store in an airtight container in the fridge for up to 3 days. Reheat gently on the stovetop with a splash of milk or cream.

Can I freeze it?
Yes, but it’s best to slightly undercook the pasta if freezing. Thaw in the fridge and reheat slowly to prevent separation.

Serving and Suggestions

Serve with a side of steamed vegetables or a crisp green salad.
Garnish with chopped parsley, chives, or a sprinkle of extra cheddar for presentation.
Pair with garlic bread or a warm baguette for a complete comfort meal.
Perfect for casual family dinners, potlucks, or lunchboxes.