Instructions

  1. Preheat grill to medium heat.
  2. Meanwhile, heat oil in large nonstick skillet on medium-high heat.
  3. Add onions; cook 5 minutes, stirring frequently.
  4. Cover with lid. Simmer 20 minute or until onions are golden brown, stirring frequently.
  5. Meanwhile, grill patties 5 minute on each side or until medium doneness (160ºF). Stir steak sauce into onion mixture.
  6. 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.