French Onion Smash Burgers | Campbell's® Recipes

Ingredients

• 1 pound 80% lean ground beef
• 1 teaspoon kosher salt
• 1 teaspoon ground black pepper
• 1 can (10.5 ounces) Campbell’s® Condensed French Onion Soup
• 1 teaspoon neutral flavored oil
• 1 cup yellow or white onion, thinly sliced
• 2 teaspoons garlic, minced
• 6 slices Swiss or Gruyère cheese