Double Cheese Burger - LoneRecipes

Ingredients

• 1 lb ground beef (80/20 fat content)
• 4 hamburger buns with sesame seeds
• 8 slices American cheese
• 1 large tomato, sliced
• 1 cup fresh lettuce leaves
• 1 small onion, thinly sliced
• 2 tbsp mayonnaise
• 2 tbsp ketchup
• 1 tbsp mustard
• Salt and pepper to taste