Sour Cream Chicken Casserole

3 cups cooked, diced chicken
1 8 ounce bag noodles
1 small can mushrooms
2 cans cream of chicken soup
1 16 ounce container sour cream
8 ounces shredded Swiss cheese

Cook and drain noodles.

Combine all ingredients except Swiss cheese. Place in 9 x 13 inch pan; top with Swiss cheese.

Bake at 350F for 45 minutes.