1 lb. ground beef
1 tsp. seasoned salt
5 slices process American cheese
4 tbsp. butter, 1/2 stick
2 tbsp. prepared mustard
5 split hamburger buns
10 cherry tomatoes, sliced thin
8 small white onions, peeled and sliced thin

Mix ground beef and seasoned salt lightly in a small bowl; shape into 40 one inch patties. Place in a single layer in a shallow baking pan. Bake in moderate oven 375 degrees for 10 minutes. Cut each cheese slice into 9 squares; place one over each meat patty. Bake 4 minutes longer, or until cheese melts slightly.

While meat cook, blend butter and mustard in a cup. Toast hamburger buns in oven; spread with butter mixture; cut each half in 4 triangles. When ready to serve, place each meat patty on a bun triangle; top with a slice each of tomato and onion; hold in place with a wooden pick. Serve hot. Makes 20 servings.