Stuffed Burger Ingredients
1 egg, lightly beaten
1/4 cup chopped onion
2 tablespoons ketchup
1/2 teaspoon garlic salt
1/4 teaspoon ground black pepper
1-1/4 pounds lean ground beef or turkey
1 recipe Fiesta Filling or Greek Filling
4 hamburger buns, toasted, if desired
Step 1: Make Filling
In a small bowl stir together 1/4 cup shredded Mexican cheese blend, 2 tablespoons finely chopped tomato, 2 tablespoons finely chopped and seeded jalapeno chile pepper, 2 tablespoons snipped fresh cilantro, and two tablespoons thinly sliced green onions.
In a small bowl stir together 1/4 cup finely chopped, seeded tomato; 1 ounce crumbled feta cheese; 2 teaspoons finely chopped onion; 2 teaspoons finely chopped, pitted ripe olives; 1/4 teaspoon red wine vinegar; 1/4 teaspoon olive oil; and 1/8 teaspoon dried oregano, crushed. Cover; chill for at least 30 minutes before using.
Step 2: Make Beef Mixture
In a large bowl combine egg, onion, ketchup, garlic salt, and pepper. Add beef; mix well. Place on a cutting board or work surface and shape the beef mixture into a large, flat rectangle.
Step 3: Form Patties
Score the rectangle crosswise into four equal sections. Cut lengthwise down the middle, making eight equal portions of meat. With your hands, lightly but firmly press each portion into a 4-inch-diameter patty.
Step 4: Place Filling
Place 2 tablespoons of desired filling in center of each of 4 of the patties, spreading filling to within 1/2 inch of edges. Top with remaining patties, pressing edges together to seal.
Step 5: Grill Burgers
In a grill pan or a 10-inch skillet, cook burgers over medium heat for 7 minutes. Turn burgers carefully using a wide spatula; cook for 5 to 8 minutes more or until burgers are done (make sure they reach 160 degrees F for beef or 165 degrees F for turkey). Serve burgers in buns. Makes 4 sandwiches.