Cheddar-And-Onion Smashed Burgers are juicy and flavorful burgers that are perfect for grilling season. The patties are made with a mixture of ground beef, grated cheddar cheese, and sautéed onions, which adds a delicious depth of flavor. The burgers are smashed on the grill to create a crispy exterior and a juicy interior. Serve these burgers on toasted buns with your favorite toppings for a satisfying and delicious meal.