Step 11. In a large bowl, mix together the ground beef, green onions, garlic, mustard and taco seasoning. Divide the mixture and form into 4 patties. Cover and refrigerate the patties at least 1 hour to give the flavors time to marry.
Step 22. Heat the grill and season both sides of each patty with habanero powder. Grill the patties on both sides to desired doneness, topping the burgers just before they are done with sliced jalapenos and cheese.
Step 33. Serve the burgers in the toasted buns, garnish as desired with lettuce, avocado slices and hot sauce.