English Island Cheese Burger

1 lb. ground beef
4 thick slices white cheddar cheese
1/2 lb. bacon, cooked crisp and drained
1onion, sautéed until clear
4 English muffins
2T. Mayo
Make 4 hamburger patties from the beef. Grill until cooked through and place the cheese on each pattie. Cover for 2 minutes and melt the cheese. Set aside. Toast the English muffins and spread a little mayo on each side. Place the beef on the bottom of each muffin and top with bacon. Close with the tops of the muffins and serve!