Mix meat and 2 Tbsp. ranch dressing. Shape into 8 thin patties. Mix remaining ranch dressing and bacon. Spoon about 1 Tbsp. of bacon mixture onto center of each of 4 patties. Top with 2 single quarters of cheese and second patty. Pinch together edges of patties to seal. Grill patties 7-9 minutes on each side or until cooked through. Add lettuce and tomato.
These are so good! We make them on the grill once in awhile but I used the ranch dressing powder (before you make it up) instead of the liquid. And we also skip the bacon.