To prepare the chipotle mayonnaise, combine the ingredients listed in a blender or food processor and blend until completely smooth. Set aside.
In a bowl add all of the ingredients for the burgers and use your hands to combine the mixture and blend it all together. Form the mixture into 4 to 6 patties.
Preheat the barbecue to medium heat or alternatively heat a grill pan on the stove.
Depending on the size of your grill, start with the red onion and pineapple and grill each for approximately 3 minutes per side until soft and grill marks form. Once cooked set aside
Grill the burgers for 4 minutes per side until the are completely cooked through.
To assemble the burgers start with a leaf of lettuce, top with a grilled slice of pineapple, 2 slices of bacon, a chicken patty, slice of tomato and the grilled onion. Drizzle the chipotle mayo overtop before serving.