Super easy, kid-friendly sausage casserole

This is one of the easiest casseroles I know ... it's yummy comfort food, perfect for winter and the kids will love it!
 
8 sausages - get the cheap Coles or Woolies ones
Olive oil
1 diced onion
1 tin beans (approx 400g), I usually use canelli or red kidney beans but any kind is fine
1 tin tomatoes with some kind of herbs in them (approx 400g), I used the Aldi ones
3 tbs Gravox, the traditional one is best but I've also used the chicken one and it was fine
Water

Put the sausages in a pot of water and bring to the boil. Simmer for a few minutes then drain.
When the sausages have cooled a little peel the skins off them and slice them on the diagional into pieces that are about 1cm thick.
Rinse the saucepan, add some olive oil and diced onion. Fry until the onion is soft.
Return sliced sausages to pan, add tinned tomatoes (and all the juice) and drained beans.
Bring to a simmer then add approxinately 2 cups of water and about three tablespoons on Gravox.
Simmer until the sauce thickens, you may need to add a little more Gravox.
Season to taste. You may also need to add a little sugar, depending how sweet the tomatoes you used are.

Ideally serve with green veggies and mash or bread. We have also had it with pasta and cous cous.