Hamburger Steak 'n Everything Sandwich

1 LB. ground beef
1 green pepper, sliced
1 onion, chopped
8 mushrooms, sliced
salt and pepper
1 cup cheddar cheese, shredded
1 cup mozzarella cheese, shredded
1 chopped tomato
6 deli rolls

Crumble and cook ground beef in large skillet until brown. Drain fat. Add green pepper, onion, mushrooms, salt and pepper. Cook 3-4 minutes. Mix cheeses together. Add to hamburger mixture. Toss lightly and cover with lid until cheese is melted. Spoon on deli rolls. Place tomatoes on top of meat.
Serve with Potato Chips and Pickle, Cheese, Olive kabobs