In a skillet over high heat, cook the bacon on both sides until crispy. Once cooked, transfer to a plate. Wipe out and discard the excess fat, then use the same pan to cook the burger patties.

In a bowl, combine the ground beef and seasoning mix. Knead for about 2 minutes to break up the fibers and evenly distribute the seasoning. Divide the meat into four portions and shape into wide, thin patties (they will shrink as they cook). In a greased skillet heated over medium-high, cook the patties for 4-5 minutes on each side.

Slice the tomato into rounds. Slice the onion into rings or chop finely. Wash the lettuce and set aside.

Toast the burger buns in a toaster or in the oven at 300°F (150°C) until lightly crisp. Once warm, place a slice of cheese on each bun.