2 tablespoons olive oil
3 onions, thinly sliced, separated into rings
8 hamburger patties (1/4 lb. each)
3 tablespoons A.1. Original Sauce
2 tomatoes, sliced
8 hamburger buns, partially split
8 slices cheddar cheese
Preheat grill to medium heat.
Meanwhile, heat oil in large nonstick skillet on medium-high heat.
Add onions; cook 5 minutes, stirring frequently.
Cover with lid. Simmer 20 minute or until onions are golden brown, stirring frequently.
Meanwhile, grill patties 5 minute on each side or until medium doneness (160ºF). Stir steak sauce into onion mixture.
Place 1 tomato slice and burger on bottom half of each bun; cover with 1 slice cheese, 3 tablespoons of the onion mixture and top of bun.