Pizza Burgers - cooking recipe

Ingredients

1 1/2 lb. hamburger
1/2 c. tomato sauce
1/4 c. chopped mushrooms
3 Tbsp. garlic salt
1/4 tsp. pepper
6 thin slices Mozzarella

Preparation

Mix all but cheese.
Shape them into 6 balls.
Cook 5 minutes on first side.
Turn.
Top with cheese.
Cook until done.