1 pinch garlic and herb seasoning blend (such as Mrs. Dash®), or to taste
ground black pepper to taste
Preheat grill for medium heat and lightly oil the grate.
Mix ground turkey, onion, almond flour, egg, garlic, basil, seasoning blend, and black pepper together thoroughly in a bowl. Form 5 burger patties using about 1/3 cup of the turkey mixture for each.
Cook turkey burgers on preheated grill until no longer pink in the center and the juices run clear, 7 to 10 minutes per side. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C).