Instant Pot® Spicy Chicken Spaghetti Casserole with Frozen Chicken Breasts

Prep time: 10 min
Cook time: 55 min
Servings: 8
Yield: 8 servings

Description

Cook frozen chicken breasts without defrosting them in your Instant Pot® and make this comforting casserole dish with spaghetti, Cheddar cheese, and cream of mushroom soup.

Ingredients

1 tablespoon butter
1/2 cup chopped onion
1 (10 ounce) can diced tomatoes and green chiles (such as RO*TEL®)
2 (6 ounce) frozen chicken breasts
10 ounces spaghetti, broken in half
1 (10 1/2 ounce) can low-sodium cream of mushroom soup
1 (10 1/2 ounce) can low-sodium cream of chicken soup
1/2 cup milk
1 teaspoon taco seasoning mix
1/2 teaspoon chicken seasoning salt (such as Chook®)
nonstick cooking spray
2 cups shredded Cheddar cheese

Directions

1 Turn on a multi-functional pressure cooker (such as Instant Pot®) and select Saute function. Add in butter and onion and saute for about 3 minutes. Pour in diced tomatoes with liquid; mix to combine. Add frozen chicken breasts. Cancel Saute mode.
2 Close and lock the lid. Select High pressure according to manufacturer's instructions; set timer for 20 minutes. Allow 10 to 15 minutes for pressure to build.
3 Release pressure carefully using the quick-release method according to manufacturer's instructions, about 5 minutes. Unlock and remove the lid. Remove chicken and cut into bite-sized pieces. Add chicken back into the pot. Scatter noodles on top so they don't clump up.
4 Mix mushroom soup, chicken soup, and milk together in a bowl. Pour over noodles. Close and lock the lid. Select High pressure according to manufacturer's instructions; set timer for 7 minutes. Allow 10 to 15 minutes for pressure to build.
5 Release pressure carefully using the quick-release method according to manufacturer's instructions, about 5 minutes. Unlock and remove the lid. Stir in taco seasoning and chicken seasoning salt.
6 Set an oven rack about 6 inches from the heat source and preheat the oven's broiler. Spray an 8x12-inch casserole dish with cooking spray.
7 Transfer 1/2 of the spaghetti mixture to the casserole dish and sprinkle with 1/2 cup cheese. Add remaining spaghetti mixture and sprinkle with remaining 1 1/2 cups cheese.
8 Broil in the preheated oven until the cheese is bubbling and golden, 3 to 5 minutes.