Mayonnaise
Mustard
Ketchup
12 strips cooked bacon
12 slices dill pickle or sweet pickle slices
1 medium tomato, cut into 6 slices
6 slices cheddar cheese
1 head red leaf lettuce, washed and leaves separated
6 hamburger buns
Freshly ground black pepper to taste
Salt to taste
2 tbsp. olive oil
1 onion, cut into 6 thick slices
2 1/4 pounds ground round, chuck or sirloin