Mix ground beef (or turkey) with bacon paste, onion, Worcestershire, salt and pepper in a large bowl with your hands.
Form the burgers into four equal sized patty’s and place on grill over direct heat.
Cook for three minutes each side for grill marks and then move to indirect heat. Add cheese slices, and then cover until internal temperature reaches 160 degrees for medium burger (little to no pink). About 5 – 8 minutes with a hot coal grill. Cheese should be melted and likely bubbling.
Remove burgers from heat and toast buns if desired. Serve with your favorite condiments and sides. (I use no condiments as I love the natural flavor, but my wife is a sucker for fresh slices of tomato and avocado.)