Combine all ingredients except avocado oil in a large bowl. Let the mixture sit for five minutes to allow the oat flour time to absorb excess liquid. The batter will be slightly runnier than you would expect for a burger recipe, but that's okay!
2 cans tuna (7-ounces each, drained), 2 tablespoon avocado oil mayo, 2 tablespoon greek yogurt, ½ cup oat flour, 2 eggs, ¼ teaspoon salt, ¼ teaspoon pepper, ¼ cup green onions, ¼ cup parsley, 2 tablespoon dijon mustard
Preheat a large non-stick skillet on medium-high with avocado oil in it. Using a ½ cup measuring cup, add batter into the skillet and spread out to form 4-5 patties. The batter will make four to five patties, as shown in the process photos above.
2 tablespoon avocado oil
Cook for 4-5 minutes on each side until golden brown and fully set in the center. Serve immediately or save for up to 3 days.