Mix the cubed potatoes with the seasonings and pop them in the air fryer/oven for approximately

20 minutes on 220°C fan/200° air fryer. Meanwhile to make the béchamel melt the butter and then

add in the flour. Cook this out for a few minutes and then slowly add in the milk, bit by bit, stirring

constantly until you get a thick sauce. Then add in the mustard and the cheddar and season to

taste. Top the bolognese with the cooked potatoes and cheese sauce, sprinkle with the remaining

cheese and pop under the grill or in the oven until golden and bubbling. Serve and enjoy.