Delicious Grilled Burgers
["1 1/2 lb. ground beef", "3 Tbsp. finely chopped onion", "1/2 tsp. garlic salt", "1/2 tsp. pepper", "1 c. (4 oz.) shredded Cheddar cheese", "1/3 c. canned sliced mushrooms", "6 bacon strips, cooked and crumbled", "1/4 c. mayonnaise", "6 hamburger buns", "lettuce", "tomato slices"]
["In a medium bowl, combine beef, onion, garlic salt and pepper. Mix well.", "Shape into 6 patties.", "In a small bowl, combine cheese, mushrooms, bacon and mayonnaise; refrigerate.", "Grill burgers over medium-hot coals turning once.", "During the last 3 minutes, spoon 1/4 cup of cheese mixture onto each burger.", "Serve on buns with lettuce and tomato."]
["ground beef", "onion", "garlic salt", "pepper", "Cheddar cheese", "mushrooms", "bacon", "mayonnaise", "buns", "tomato"]