Cook the chicken either in the oven or air fryer - I usually cook them in the air fryer for 20 mins at 180℃
Heat the oil in a heavy pan and add the chillies making sure you pierce them a few times (otherwise they'll explode). Allow them to cook through for 2-3 mins before adding the garlic
Add the spice mix and allow to cook through for 2 mins before adding the tomato soup and brown sauce, letting this cook down over a low-medium heat for 5 mins
Add the onions (cut up into 6 wedges each), pepper (chopped in to large chunks) and potatoes (cut any large ones in half). Leave to simmer over a low heat with a lid on for 20 mins
Slice up the cooked chicken and add to the pan, cooking for a further 5 mins.
Add the spinach and allow to wilt for 2-3 mins, stirring through the sauce