Ingredients: (Serves 4)

100g/3½ oz penne

1 red onion, thinly sliced

3 celery stalks, chopped

1 carrot, grated

10cm/4in piece of cucumber, chopped

50g/2oz sweetcorn

Large tin of tuna, drained

6 tbsp mayonnaise

6 tbsp natural yoghurt

Method:

1. Cook the pasta according to the packet instructions. Drain and refresh under cold water.

2. Cut the onion slices in half to form half moons and put in a large bowl together with celery, carrot, cucumber, sweetcorn and tuna.

3. Add the cooked pasta, mayonnaise and yoghurt and stir until well coated.

4. Serve chilled.