French Onion Burger Recipe by Tasty

Ingredients

• 1 lb ground beef, 80% lean
• 1 teaspoon salt
• 1 teaspoon pepper
• 1 tablespoon oil
• 3 hamburger buns
• 3 oz comté cheese, sliced
• 1 cup caramelized onion
• 1 cup fresh arugula
• mustard, of choice, to taste