Pizza Casserole - cooking recipe

Ingredients

1 (7 oz.) box Creamettes (cooked)
3/4 c. milk
1 egg, beaten
2 lb. hamburger
1 onion (chopped)
12 oz. jar pizza sauce
1 can tomato soup
1 (4 oz.) can mushrooms (drained)
garlic powder
salt
pepper
grated cheese

Preparation

Beat milk and egg.
Put cooked macaroni into a greased 9 x 12-inch baking pan.
Pour milk and egg mixture in, refrigerate a couple of hours.