BURGERS STUFFED WITH BLUE CHEESE AND BACON

Steps:

• In a large, heavy frying pan over medium heat, warm olive oil. Add onions, cover and cook, stirring occasionally, until they are completely limp, 10-15 minutes. Uncover the pan, reduce heat to medium low and cook, stirring frequently, until the onions are golden brown and sweet, 35-45 minutes; do not allow them to burn. Remove the pan from heat and let the carmelized onions cool to room temperature. In a small bowl, stir together blue cheese and bacon. Set aside. Divide ground beef into 6 equal portions and shape each into a ball. Using your thumb, make a deep depression in each ball; do not push all the way through. Spoon about 1 tablesppn on he blue cheese-bacon mixture into the depression. gently shape the meat around the fillin, sealing it inside. Form the balls into patties about 1 inch thick. Transfer to a plate. Preheat and indoor electric grill on high heat. Place the burgers on the grill and cook, turning once, 5 to 7 minutes per side for medium, or until done to your liking. Transfer each burger to the bottom half of a bun. Spread 1 1/2 tablespoons Dijon mustard on the inside of each top bun. Top each burger with 2 tablespoons carmelized onions, 2 pieces of lettuce and 1 tomato slice, then cover with top bun. Serve immediately.