Ingredients

• 1/4 cup mashed drained canned kidney beans
• 1 pound ground beef (7% fat)
• 6 tablespoons hickory barbecue sauce
• 4 teaspoons prepared white horseradish
• 4 teaspoons minced garlic
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• Nonstick vegetable oil spray
• 4 oversize wheat rolls, halved
• 4 1/3-inch-thick slices red onion
• Watercress sprigs

Instructions

1. Place mashed beans in medium bowl. Mix in next 6 ingredients. Shape into four 1/2-inch-thick patties.
2. Prepare barbecue (medium heat). Spray cut sides of rolls and both sides of burgers and onion slices with nonstick spray. Grill cut sides of rolls until toasted, about 1 minute. Transfer rolls to plates. Grill burgers about 4 minutes per side for medium; grill onion slices about 5 minutes per side. Place 1 burger, 1 onion slice and some watercress on each roll bottom. Cover each with roll top.