1 lb. hamburger
1 sm. onion
1 can pizza sauce with cheese
1 can mushrooms
1/4 tsp. garlic salt
1/4 tsp. oregano
1/2 lb. grated cheese (cheddar/Mozzarella)
Salt and pepper

Brown hamburger and onion. Add mushrooms, spices and pizza sauce. Cool before adding cheese. Spread on halves of buns. Broil until cheese bubbles and edges of buns are toasted.