Begin to cook the fish and potatoes.Cook cod in a saucepan.Boil the potatoes in their skins in a pot with the water or in the microwave in a container with two inches of water (for the cooking time in the microwave, read the instruction booklet)
Let cool cod, eliminated any remaining bones. In a bowl add the mashed potatoes, the minced cod, the garlic cooked in the milk, tuna, drained, Parmesan, chopped parsley, salt , egg and the half lemon zest grated.
Mix well the mixture , form into balls to the same size if possible.Coat in white flour, dip in beaten egg and into bread crumbs, fry in canola oil (325 degrees F) until golden , dry on paper towels.