In a smaller bowl, combine, cumin, paprika, chili, garlic and onion powders together and stir well to mix. Pick up each burger and using your hands, rub both sides and the edges of the burger with the spice rub, gently patting the spice in. To cook, prepare the burger as you’d like – whether grilling it until your desired doneness or cooking it in a hot skillet for about 5 minutes per side. Add cheese on top 1-2 minutes before finished so it has time to melt.