In a mixing bowl, combine the drained tuna, garlic powder, onion powder, salt, and black pepper.
Add the egg, almond flour, shredded cheddar, mayonnaise, and Dijon mustard. Mix well until combined.
Shape the mixture into 4-5 small patties.
Heat butter or oil in a skillet over medium heat.
Cook the patties for about 3-4 minutes per side, until golden brown and crispy.
Serve warm, optionally with a side of dipping sauce or on a lettuce wrap for a low-carb meal.
