Pizza Casserole

1 cup uncooked medium egg noodles
1/4 lb ground beef
1/4 cup chopped onion
1/2 cup sliced pepperoni, cut in quarters
8 oz can pizza sauce
2 Tbs milk
1/2 cup shredded mozzarella cheese

Heat oven to 350°F. Cook noodles as directed. Meanwhile, in medium skillet brown ground beef and onion; drain. Stir in noodles and all remaining ingredients except cheese; mix well. Pour into ungreased 1-quart casserole. Bake for 15 to 20 minutes or until hot. Sprinkle with cheese; bake an additional 5 minutes or until cheese melts.

Source: Terry S (a friend I've lost track of over the years)