Preheat oven to 350 degrees. Line baking sheet with foil. Spray foil with avocado oil.
In a medium bowl, combine all ingredients. Note: a little warning - canned fish still has the bones. They are 100% edible but if that creeps you out (me too!) pick them out as you're flaking the fish into the bowl. Stir gently until combined evenly.
Form into 5 patties and place on your prepared baking sheet. Spray the top of each patty with avocado oil.
Bake for 15-20 minutes. Broil for a minute or two at the end to brown the tops. Use a metal spatula to remove from tray.