Baked Three Cheese Chicken Tetrazzini Pasta Casserole

INGREDIENTS

1 lb

spaghetti or fettuccine

3 tbsp

unsalted butter

1 cup

sliced white mushrooms

small onion, chopped

1 clove

garlic, chopped

sweet red bell pepper, cored, seeded and chopped

1/4 cup

flour

2 cups

chicken broth

1 cup

heavy cream

1 cup

milk

1 1/2 cups

shredded cheese (mix of equal parts Swiss, Cheddar, and Parmesan)

1/2 tsp

salt

1/2 tsp

dried thyme

1/4 tsp

pepper

2 cups

cooked diced chicken