1. Line a baking sheet with aluminum foil and spray with nonstick cooking spray or use parchment paper and set aside. 
2. In a large bowl, beat eggs and lemon juice. Stir in gluten free panko crumbs (or Parmesan), oat flour, and garlic powder until a thick mixture forms. Fold in tuna, tomato paste, fresh herbs, Italian seasoning, salt, smoked paprika and black pepper. 
3. Divide the mixture into 6 to 8 equal portions, about ¼ to 1/3 cup each. Use your hands to shape the portions into 1-inch thick patties. Place the patties on the lined baking sheet and chill in the fridge for 15 minutes.
4. While the patties are chilling. Preheat the oven to 400F. Place the uncooked patties in the oven for 20-25 minutes or until they are golden-brown, flipping them over halfway through cooking. (20 min). Remove the baking sheet from the oven, and let the tuna patties cool for 5 minutes before serving.
5. Store leftovers in an airtight container in the fridge for up to 3 days.

To Air Fry:

1. Preheat the air fryer to 400° F. Spray the air fryer basket with cooking spray. Once preheated, place tuna patties in the air fryer basket and cook for 11-13 minutes. Remove the patties from the air fryer when cooked through (internal temp of at least 165F), place on a clean plate, and cover to keep warm. Repeat the steps above until all patties are cooked.
2. Store leftovers in an airtight container in the fridge for up to 3 days.