1 (10.5 oz.) can pizza sauce
1 c. uncooked egg noodles (I used more)
1 c. Mozzarella cheese, grated
2/3 - 1 c. milk
1 lb. hamburger
1 can sliced mushrooms
3/4 tsp. oregano
1 tsp. salt or garlic salt

Mix together in a buttered casserole. Cover and refrigerate 3-4 hours. Stir well; add cheese on top. Bake at 350 degrees.