This is how I prepare this butter chicken recipe, which is a one pot meal combining chicken meat, diced thickly, a packet of butter chicken sauce, tomato paste, half an onion, and low fat cream cheese.
To extend this meal, I also add diced potato and at the end stir through frozen peas.
I've found this packet sauce from Aldi, the chain of German supermarkets has the best flavor, is suitably mild and economical.
It looks divine served with fluffy white rice and a crunchy salad.
Use a non-stick pan so as to avoid using oil in your cooking. If you don't have a non stick pan, add a tablespoon of oil to the pan and heat it before adding the onions and meat to brown.