Recipe: simple chicken casserole

I used to make this a lot.  It's very good.

Ingredients
1 slice of bacon or bacon trimmings/cooking bacon
half an onion, peeled and sliced
bit of oil (spray oil is fine)
some red pepper (I often seem to have half wrapped and waiting in the fridge), sliced
other appropriate veg to taste - e.g. mushroom, baby corn, peas, etc - sliced/peeled as necessary
one chicken breast, skinned and boned and sliced or chunked (this does three people who don't want to load their plate with meat) - or two chicken thighs
chopped tomatoes
tomato puree
garlic puree
bit of chicken stock powder (or veg powder)
seasonings to taste - smoked paprika is nice
salt and pepper to taste.

Method
Dry fry the bacon until the fat runs.  Add a bit of stray oil if necessary.
Add the onion and slow fry, adding a splash of water, then add the red pepper.
When they are soft, remove from the pan, turn up the heat, add the chicken with a bit more stpay oil if needed and zizzle it until it's coloured all over (doesn't take long).  Then add the paprika (if using) and sizzle it briefly.
Put the onion, etc, back in, add the tomatoes, purees, other veg, stock powder and seasonings.  Bring to a simmer and taste, adjusting seasonings if needed (leave the salt to the end).
Cover and simmer to reduce it a bit until the liquid it how you want it.  Then taste again and adjust seasonings.
Serve with whatever you fancy!
(you can use cooked chicken but add it nearer the end)