In a bowl, combine the Beyond Beef® with optional garlic powder, mixing until just combined (if using pre-formed patties, just sprinkle garlic powder on top). Form 4 equal sized patties about 4-inches wide. Spray or brush both sides with oil and season with salt and pepper. (Tip: lightly oil your hands when forming the patties so the meat sticks less to your hands)
Spray air fryer basket or rack with oil. Carefully lay patties in the air fryer in a single layer. Air Fry at 380°F/193°C for 5 minutes.
Flip the patties and continue cooking for about 3-6 minutes or until cooked through and internal temperature is 160°F/71°C. Timing will vary depending on thickness of patties and individual air fryer model.
For Cheeseburgers: add the slices of cheese on top of the cooked patties. Air fry at 380°F/193°C for about 30 seconds to 1 minute to melt the cheese.
Warm the buns in the air fryer at 380°F/193°C for about 1 minute.
Serve on buns, topped with your favorite burger toppings.