In a bowl, toss the red pepper, feta and parsley together.
Whisk the hummus and yogurt together; set aside.
Grill the burgers
Grill the burgers to desired doneness, 160 degrees F according to the USDA.
Meanwhile, toast the flat breads.
Assemble the burgers
Arrange the lamb burgers over lettuce, cucumbers, and tomatos on the flat bread. Spoon hummus sauce over top and sprinkle a hefty portion of the red pepper feta mix on top.
Serve and enjoy.
Notes
You can shape your own ground lamb burgers with bulk ground lamb. Aim for a patty about 6oz in weight.Place the patties in the fridge until ready to grill to keep the fats cold. If you don't have lamb, or want a variation without lamb, then consider mixing ground pork and beef in equal parts.