In a bowl, mix in tuna, stuffings, mayo, mustard, onions, beaten egg, and a juice of a lemon wedge.
Heat oil on the frying pan over medium heat. Add a scoop of the tuna mixture and flatten each. Form a patty while flattening the tuna mix. Fry each side for about 3 minutes or until both sides are golden brown.
Add the shredded cheeses on top of the tuna cakes towards the end. They'll be ready once the cheeses have melted on top.
Plate your tuna cakes and add a dollop of tartar sauce and sprinkle chives or dried parsley. Add a lemon wedge next to the tuna cakes and serve immediately!
Nutritional information for the recipe is provided as a courtesy and is an approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site.