No-Bread Tuna Melt is a low-carb and gluten-free version of the classic tuna melt sandwich. Instead of bread, this recipe uses bell peppers as a delicious and nutritious alternative. The tuna salad is made with canned tuna, mayonnaise, celery, red onion, and seasonings. It is then topped with cheese and broiled until melted and bubbly. This tuna melt is a satisfying and flavorful meal that can be enjoyed for lunch or dinner.