In large mixing bowl mix salad dressing, BBQ sauce, brown sugar, honey, salt, pepper and lemon juice. Set aside 1/2 a cup for grilling.
Place a pineapple slice onto each hamburger securing with a toothpick. Wrap each hamburger with a slice of bacon securing with a toothpick. Grill hamburgers pineapple side down. Turn and brush with the 1/2 cup of the BBQ mixture. Then grill to desired doneness.
Heat the unused BBQ mixture and serve with Great American Hamburgers.