Add the ground turkey, onion powder, paprika, salt, pepper, coriander, cayenne, and green onions to a large bowl and stir to combine. Use your hands to form into burger patties.

Heat the grill to medium-high heat and cook the burgers for 5-6 minutes on each side, or until cooked through. Serve the burgers over sliced tomato, spinach, and avocado.

Servings: 4-6 burgers