Wash potatoes clean and, using a fork, stab 5-6 holes in each potato. Drizzle with oil and season with salt and pepper. Place in either an air fryer or oven and cook for 55-60 mins or until fork-tender.
Meanwhile, heat oil in a large frying pan and sauté onion until tender. Add garlic and mince. Cook, stirring with a wooden spoon to break up mince, for 6 to 8 minutes or until browned. Add worcestershire sauce, gravy powder, tomato sauce and stock and stir to combine. Allow to simmer until reduced, about 10-15 mins.
For the coleslaw, add cabbage, carrot and capsicum to a bowl. In a separate small bowl, add mayonnaise, mustard, honey and chives and stir to combine. Pour over cabbage mixture and toss to coat evenly.
To serve, slice open each potato and top with mince and cheese then return to air fryer or oven for 5 mins or until cheese is golden. Remove from fryer and top with coleslaw and sour cream. Serve