In a medium sized bowl, add the tuna, egg, green onions, mayonnaise, mustard, lemon juice, Italian seasoning, salt and pepper and ¼ cup of the panko bread crumbs. Stir to combine.
Divide the mixture into 8 mini patties (about 1 and ½ inches in diameter). Coat the patties in the remaining ¼ cup of panko bread crumbs and and place on a plate. Place the plate in the refrigerator for 30 minutes.
Preheat oven to 375 F.
Grease a baking tray with vegetable oil. Place the patties on the tray and bake for 20 minutes.
Carefully place the patties on a cooling rack for 10 minutes.
Serve warm with a side of sweet chilli dipping sauce or garlic aioli.