Brown 1 lb. hamburger with one chopped onion. Drain. Add 1 box of sliced mushrooms( or you can use canned mushrooms) and saute.
1/2 lb. cheese, grated
1 can tomato soup
1 tsp. minced or crushed garlic
Dash of Worcester
1/4 cup (or so) ketchup
1 can olives, chopped (Using a knife you don't care about, just chop the drained olives right in the can)
Pickle relish, opt. (I don't usually put it in)
Salt and Pepper
Mix all together in the fry pan. Toast 6 buns under the broiler. Load this mixture on the open buns (you can sprinkle a little more cheese on top if you would like,) then broil and serve.