Pre-heat the grill to medium heat.
Stir contents of Flavour Shot, then spoon into a large frying pan over a medium heat, add onion and fry for 5-6 minutes, or until softened. Add the pepper and tomato purée and fry for a further 3-4 minutes, stir in the chopped tomatoes, water, sausages and pasta, bring to the boil, reduce heat and simmer for 3-4 minutes.
Transfer to an ovenproof dish and sprinkle with cheese. Place under the grill for 4-5 minutes, or until the cheese has melted and begins to turn golden. Serve immediately.