Happy to come and cook for you.
For chicken fillets, into flour then flat in the pan to fry quickly! on each side. Do in batches if need be. Remove to a plate.
In the floury pan, onion garlic etc, stir gently for a minute. Add spices, tomato and whatever else. Stir to release anything stuck to the pan. Chicken back in, lid on, turn to high until it bubbles. Watch it.
Turn to quite low and simmer for 15- 20 minutes. Fillets take very little time to cook. (Those mumsnetters talking 2 hours are cooking with thighs or whole breasts).
Taste and correct your seasoning. If sauce is too runny, a tsp of cornflour in a cup with a spoon of the sauce and mix to a cream with no lumps. Chicken out, add cornflour to the sauce, stir and bubble for 5 minutes with the lid off.
Chicken and sauce into a dish and serve.
Chicken fillets cook so quickly, I wouldn’t bother with the oven. A pan on the hob is quick and easy.