Gluten-Free Grilled Burgers

Ingredients

• 1 egg, lightly beaten
• 1/2 cup 4% cottage cheese
• 1 cup cooked long grain rice
• 1 small onion, finely chopped
• 1/2 cup shredded cheddar cheese
• 2 tablespoons plus 1-1/2 teaspoons gluten-free onion soup mix
• 2 tablespoons gluten-free all-purpose baking flour
• 2 tablespoons grated Parmesan cheese
• 1-1/2 teaspoons gluten-free Worcestershire sauce
• 3 garlic cloves, minced
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• 1-1/2 pounds ground beef
• Sliced tomatoes, lettuce leaves and sliced onions, optional