6 oz. tomato paste
1/4 c. catsup
1 1/2 tsp. oregano
3/4 tsp. garlic salt
2 tbsp. flour
3/4 c. canned milk
1/4 c. water
1 lb. ground beef
1/2 c. Parmesan cheese
1 c. grated American cheese
8 round sandwich buns

Mix together first four ingredients, set aside. Cook and stir over medium heat until thick the flour, milk and water (do not boil). Stir in the American cheese until melted and sauce is smooth. Brown the beef. Arrange buns on cookie sheet (cut sides up). Toast them in oven. Spread each with tomato mixture, top with cheese sauce, over with ground beef and sprinkle with 1/2 cup Parmesan cheese. Bake at 400 degrees for 15 to 20 minutes. Makes 16.