Heat a large pan or cast iron casserole over a medium heat, add the oil and then chop up the pepper into smallish chunks, add oi the oil and allow to heat while you chop the onion
Chop the onion into small-,medium dice and add to the pan
Lightly crush the garlic cloves and peel, then crush with the flat side of the knife blade and add to the pan
Reduce the heat and let the onions and peppers soften
After around 10 mins add the spices and let them heat for a min or 2.
Turn up the heat to medium high and add the mince, mash it around and let it brown for a 2-3 mins
Add the chopped toms and the tomato paste and give a good stir. Add the sugar and season to taste. Drain and add the kidney beans, give a stir bring to a boil then turn the heat right down [medium sized ring] cover and leave to cook for at least 30 mins or an hour if you have the time