Add the carrots to the sushi seasoning in a bowl and let pickle while you prepare the rest of the ingredients.
Preheat the oven to 200 degrees on bake.
In a large bowl combine the meatball ingredients.
With wet hands roll into small bite-sized balls.
Fry the meatballs in a fry pan in batches until cooked.
While the meatballs cook, thinly slice the cucumber, cabbage and coriander.
Cut the rolls and toast in the oven or air fryer.
Once the rolls are toasted, cut in half lengthways, spread with butter or pate (optional, I didn’t use it) or kewpie mayo.
Place the sliced cabbage, cucumber, carrot, and meatballs onto the bottom half of the roll.
Drizzle kewpie mayo, sweet chilli sauce and sprinkle on the chilli and coriander, then gently press on the top half of the roll.