Heat your cast iron skillet over medium heat for 5 minutes.
When the skillet is hot, add in the 1 tablespoon avocado oil, the chopped bell pepper and chopped celery. Season with a pinch of salt. Cook over medium heat, stirring occasionally, until the veggies are softened. About 5 minutes.
1/2 a bell pepper, 2 ribs of celery
While the bell pepper and celery are cooking, prepare the tuna cake batter. In a large bowl, add the tuna, almond flour, mayonnaise, eggs, parsley, green onions, salt, and then add the cooked bell pepper and celery when they are done cooking. Use a fork to fully combine the batter.
18 ounces wild tuna, 1/2 cup almond flour, 1/4 cup mayonnaise, 2 eggs, 4 green onions, 1 teaspoon salt, 1/4 cup fresh parsley
In the same cast iron skillet over medium heat, add the 1/4 of avocado oil. Heat it for 1 minute.
1/4 cup avocado oil
Use a medium size cookie scoop (or measure out 1.5 tablespoons) to scoop out the tuna cake batter. Gently form them into patties with your hands.
Cook the tuna cakes about 5 minutes per side until crispy and golden brown. You will need to work in batches so you don't overcrowd the pan.
When the tuna cakes are done cooking, transfer them to a wire rack to cool. This will keep them crispy and avoid soggy bottoms.
While the tuna cakes are cooking, make the southwest sauce. In a small bowl combine the mayonnaise, ketchup or sriracha, and parsley. Stir to combine.
6 tablespoons mayonnaise, 2 tablespoons keto friendly ketchup or sriracha, 2 tablespoons finely chopped parsley
Serve the tuna cakes warm topped with 2 tablespoons of the southwest sauce.
Leftovers will keep in an airtight container refrigerated for at least 5 days, or frozen for at least 6 months.
See the Recipe Notes below for more tips, FAQs and substitution info!