Cheeseburger Frittata is a delicious and satisfying dish that combines the flavors of a cheeseburger with the simplicity of a frittata. This recipe features ground beef, onions, tomatoes, and cheddar cheese, all mixed together with beaten eggs and cooked until golden and fluffy. It's a perfect option for breakfast, brunch, or even dinner. Serve it hot with a side of salad or toast for a complete meal.