Instant Pot Chicken Enchilada Pasta Casserole

INGREDIENTS

1 tbsp

vegetable oil

1/2

yellow onion (diced)

2 cloves

garlic (minced)

1 19 ounce can

enchilada sauce

1 10 ounce can

diced tomatoes and green chiles

1 1/4 cups

water

1 1.25 ounce package

taco seasoning

1 lb

boneless skinless chicken breasts (diced into bite sized pieces)

3 cups

dried rotini pasta

2 cups

shredded Mexican cheese

scallions, olives, diced tomatoes, and fresh cilantro (for serving)