Instant Pot Tuna Noodle Casserole

This creamy Instant Pot Tuna Noodle Casserole is an easy comfort food pasta dinner made with tender egg noodles, tuna, cheese, and simple pantry staples all cooked in one pot.

My family loves a good Instant Pot dinner, especially on busy weeknights when we need something quick and comforting. Recipes like my Instant Pot Enchilada Casserole and Instant Pot Lasagna are always on repeat because they make dinnertime easy.

Tuna noodle casserole was one of those classic comfort food meals my mom made growing up, and now it's one of those meals I make for my own family too. My daughter is allergic to peas, so I usually use corn instead, but just about any veggie works great in this creamy Instant Pot Tuna Casserole!

Why Make Tuna Noodle Casserole in the Instant Pot?

Making tuna noodle casserole in the Instant Pot keeps things quick, easy, and perfect for busy nights. The noodles cook right in the broth for lots of flavor, and the cheese and half and half make it extra creamy and comforting. Plus, fewer dishes is always a win!

If you prefer an oven baked version made in a baking dish, try my Ultimate Tuna Noodle Casserole for another family favorite!

Ingredient Notes

See printable recipe card below for exact ingredients and full directions.

• Tuna: I usually use canned tuna in water, but albacore tuna works great too for a meatier texture.
• Peas or corn: I typically use corn since my daughter is allergic to peas, but just about any veggie works well in this casserole.
• Chicken broth: Helps the noodles cook evenly while adding extra flavor. Vegetable broth or chicken stock works too.
• Half and half: Added after pressure cooking for a creamy sauce. Milk can be substituted if needed.
• Cheddar cheese: Freshly shredded cheese melts best and gives the casserole its creamy, cheesy finish.

Variations

• Add frozen peas, carrots, broccoli, green beans, or whatever veggies your family enjoys most.
• Swap the cheddar cheese for Colby Jack, Monterey Jack, or mozzarella for a different flavor.
• Add onion powder, extra garlic powder, or extra cheese for even more flavor.
• For a crispy topping, add crushed potato chips, panko breadcrumbs, or buttery bread crumbs before serving. You can even place the casserole under the broiler for 2-3 minutes until golden brown.
• Stir in cream of mushroom soup or cream of celery canned soup for an even creamier casserole.

How To Make Instant Pot Tuna Noodle Casserole

Step 1. Add the uncooked egg noodles to the Instant Pot liner.

Step 2. Add in the peas or corn and drained tuna.

Step 3. Add the chicken broth, salt, pepper, and garlic powder. Secure the lid and move the pressure valve to the sealed position. Cook on manual high pressure for 3 minutes, then carefully do a quick release.

Step 4. Stir in the half and half and shredded cheddar cheese.

Step 5. Allow the casserole to sit for about 5 minutes, or until thickened to your liking.

Step 6. Serve warm with a sprinkle of parsley and enjoy!

Tips for Success

• Make sure the pressure valve is set to the sealed position before pressure cooking.
• Do a quick release once the cook time is finished to keep the noodles from getting too soft.
• The sauce will continue to thicken as the casserole sits for a few minutes after cooking.
• For even more creaminess, stir in extra shredded cheese before serving.
• Freshly shredded cheese melts smoother than pre-shredded cheese.
• Love easy pressure cooker dinners? My Instant Pot Chicken Taco Bowls are another quick weeknight favorite.

How to Avoid the Burn Notice

To help avoid the burn warning on your Instant Pot, make sure there is enough liquid in the pot and avoid stirring once everything is added. The liquid helps the noodles cook evenly while preventing ingredients from sticking to the bottom of the pot.

Storage & Freezing

• Store leftovers in an airtight container in the fridge for up to 4 days.
• Reheat in the microwave with a splash of milk or broth to help keep the sauce creamy.
• Freeze leftovers in a freezer-safe container for up to 2 months.
• Thaw overnight in the fridge before reheating.

Instant Pot Tuna Noodle Casserole Recipe FAQs

More Comfort Food Recipes You’ll Love

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