Savory Instant Pot Chicken Spaghetti

Last winter, when my oldest came home from college with that exhausted look only finals week can bring, I needed something that felt like a hug in a bowl but wouldn't keep me trapped in the kitchen for hours. This Instant Pot chicken spaghetti became our Tuesday night ritual through the whole semester—warm, familiar, and ready in the time it took to catch up on the day's chaos over tea.

I'll never forget the first time I made this for my sister and her kids. My niece took one bite, eyes wide, and asked if I'd been cooking all day since lunch. The little ones went back for thirds, and my sister quietly slipped me the recipe card she'd brought, admitting she was tired of her own pasta routine. Sometimes the simplest meals create the loudest memories.

Ingredients

• 2 large boneless skinless chicken breasts: Cut into bite sized pieces so they cook evenly and absorb the sauce beautifully
• 1 medium onion finely chopped: The foundation of flavor—take your time here and let them soften properly
• 3 cloves garlic minced: Fresh garlic makes all the difference in that aromatic base layer
• 1 red bell pepper diced: Adds sweetness and a pop of color that makes the dish feel special
• 1 can 400g crushed tomatoes: Quality matters here—your favorite brand will shine through
• 2 tablespoons tomato paste: Concentrates the tomato flavor and gives the sauce body
• 250g uncooked spaghetti broken in half: Breaking the noodles makes them easier to stir and serve later
• 3 cups low sodium chicken broth: This becomes your pasta cooking liquid so choose one you'd drink on its own
• 1 teaspoon Italian seasoning: The backbone herb blend that ties everything together
• 1 teaspoon paprika: Adds subtle warmth and that gorgeous reddish hue
• 1/2 teaspoon crushed red pepper flakes optional: Adjust to your heat preference—we like a gentle background warmth
• Salt and black pepper to taste: Season throughout the process, not just at the end
• 1/2 cup freshly grated Parmesan cheese: The finishing touch that brings all the flavors home
• 2 tablespoons chopped fresh parsley: Fresh herbs at the end brighten the whole dish

Instructions

Build your flavor foundation:

Set the Instant Pot to Sauté mode, add a drizzle of oil, and cook the onion and bell pepper for 2-3 minutes until softened. Stir in the garlic for just 30 seconds until it becomes fragrant—this is where the magic begins.

Give the chicken a head start:

Add the chicken pieces and cook for 2-3 minutes, stirring occasionally until they start to develop some color. They don't need to be fully cooked through here—they'll finish perfectly under pressure.

Wake up the spices:

Stir in the tomato paste, Italian seasoning, paprika, and red pepper flakes if using, seasoning generously with salt and pepper. Let everything meld together for about a minute until the tomato paste darkens slightly and becomes fragrant.

Deglaze and gather those browned bits:

Pour in the chicken broth and use your spoon to scrape up any flavorful bits stuck to the bottom of the pot. This step captures all the flavor you've built so far.

Add tomatoes and arrange the spaghetti:

Stir in the crushed tomatoes, then spread the spaghetti evenly over the top. Press down lightly so the noodles are submerged but don't stir—this arrangement prevents the dreaded burn notice.

Pressure cook to perfection:

Secure the lid and set to Manual or Pressure Cook on high for 7 minutes. The Instant Pot will work its magic, infusing the pasta with all those savory flavors.

Release with patience:

When cooking completes, let the pressure release naturally for 5 minutes, then carefully quick release any remaining pressure. This combination yields perfectly tender pasta every time.

Bring it all together:

Gently stir everything until combined—the sauce will thicken beautifully as you mix. Add the Parmesan cheese, stirring until it melts into that creamy, dreamy consistency we're all here for.

Final touches and serve:

Taste and adjust seasoning if needed, then serve immediately, garnished with fresh parsley and maybe a little extra Parmesan if you're feeling generous.

Save

This recipe has saved more weeknight dinners than I can count. There was that evening when my neighbor dropped in unexpectedly, and I was able to serve something that felt thoughtfully prepared despite the chaos of the afternoon. Sometimes the best hospitality is just having something warm and ready to share.

Making It Your Own

Chicken thighs work beautifully here if you prefer darker meat—they stay incredibly tender and add extra richness to the sauce. I've also used this same method with Italian sausage for a heartier variation that my husband requests whenever the weather turns cold.

Adding More Vegetables

Sometimes I toss in mushrooms, spinach, or diced zucchini during the initial sauté phase. The vegetables soften and absorb all those aromatic flavors, making this an easy way to sneak more nutrition past picky eaters without anyone feeling like they're missing out on the good stuff.

Serving Suggestions

A crisp green salad with a bright vinaigrette cuts through the richness perfectly. Some warm garlic bread never hurt anyone either, especially when you need to stretch the recipe to feed unexpected guests or just want that complete comfort meal experience.

• The flavors deepen overnight, so don't be afraid to make extra for lunch the next day
• If reheating, add a splash of broth to loosen the sauce back up
• This freezes beautifully for those nights when even the Instant Pot feels like too much effort

Save

There's something deeply satisfying about a recipe that delivers so much comfort with so little fuss. May this find its way into your regular rotation and create the kind of easy, warm moments that make a kitchen feel like home.

Recipe FAQs

→ Can I use chicken thighs instead of breasts?

Yes, boneless skinless chicken thighs work beautifully in this dish. They may need an extra minute of cooking time, but tend to stay even more moist during pressure cooking.

→ Do I need to cook the spaghetti before adding it?

No, the spaghetti cooks directly in the pot with the liquids. Breaking it in half helps it fit better and makes serving easier. The pasta will absorb the flavorful broth as it cooks under pressure.

→ Why shouldn't I stir the spaghetti into the liquid?

Layering the spaghetti on top without stirring prevents it from clumping together or sticking to the bottom of the pot. It will cook evenly as it sits in the liquid, and you can stir everything together after pressure cooking is complete.

→ Can I make this without an Instant Pot?

You can adapt this for stovetop cooking. Brown the chicken and vegetables in a large Dutch oven, then add the liquids and pasta. Simmer covered for about 15-18 minutes until the pasta is tender and most of the liquid is absorbed.

→ How should I store leftovers?

Store cooled leftovers in an airtight container in the refrigerator for up to 3 days. The pasta will continue to absorb the sauce, so you may want to add a splash of broth when reheating to restore the creamy consistency.

→ What vegetables can I add to boost nutrition?

Spinach, mushrooms, zucchini, or diced carrots work well. Add them during the initial sauté with the onions and peppers so they cook down properly. You can also stir in fresh spinach after pressure cooking while the dish is still hot.