Cheesy Loaded Chicken Noodle Casserole

INGREDIENTS

medium yellow onion, diced

4 oz

cremini or baby portobello mushrooms, chopped

10 3/4 oz

can cream of chicken soup

1 cup

sour cream

1 1/4 cups

half and half

kosher salt

1/4 tsp

black pepper

1/4 tsp

garlic powder

slices bacon, diced ((divided))

2 cups

cooked and shredded chicken ((leftover chicken or a rotisserie chicken is great for this))

1 cup

frozen peas

12 oz

extra wide egg noodles, cooked 1 minute shy of al dente and drained

1/2 cup

shredded Colby cheese (, (divided))

2/3 cup

shredded mozzarella cheese (, (divided))

1/2 cup

shredded parmesan cheese (, (divided))

4 oz

French's Crispy Fried Onions (, (divided))