3/4 cup teriyaki sauce
1 small can pineapple slices
1 large onion, sliced
4 lettuce leaves
4 buns
4 slices swiss cheese
4 strips bacon, fully cooked
1 tablespoon butter
Drain pineapple juice in a bowl. Add teriyaki sauce and mix. Place pineapple slices and 3 tablespoons of pineapple teriyaki mixture in a resealable plastic bag. Turn to coat and set aside. Shape hamburger into 4 patties and spoon remaining pineapple teriyaki sauce over top. Preheat grill. Butter buns. Place burger patties on hot grill and grill until done. Place buns on grill cut side down to toast lightly. Remove pineapple slices from bag and place on grill and cook until slightly browned and warmed through. Assemble burgers with patty, pineapple slices, lettuce, onion slices, Swiss cheese and bacon.