A delightful twist on classic burgers with a cheesy pizza-inspired filling.
Combine the ground beef and garlic powder in a mixing bowl.
Mix gently to avoid overworking the meat, which can make the patties tough.
Divide the beef mixture into eight equal portions and shape them into thin patties.
Use a flat surface and your hands to evenly shape the patties.
Place a portion of shredded mozzarella cheese in the center of four patties.
Leave a border around the edges to help seal the patties.
Top each cheese-filled patty with another patty and press the edges to seal.
Ensure the edges are sealed well to prevent the cheese from leaking out during cooking.
In a saucepan, combine the pizza sauce, mushrooms, oregano, and chopped onion. Simmer over low heat for 10 minutes.
Stir occasionally to prevent the sauce from sticking to the pan.
Heat butter in a skillet and sauté the onion until tender. Set aside.
Cook over medium heat to avoid burning the butter.
Cook the patties on a preheated grill or skillet over medium heat until fully cooked, about 5 minutes per side.
Flip the patties gently to keep them intact.
Spread a layer of pizza sauce on the bottom half of each burger bun.
Toast the buns lightly for added texture.
Place the cooked patties on the sauced buns, top with sautéed onions and additional sauce, then cover with the top bun.
Serve immediately for the best flavor and texture.