Ingredients:
Shell pasta
Extra garlic for 4 people
1 small onion
2 garlic cloves, crushed
1 tbsp olive oil
350 gms peeled uncooked prawns
225 gms can tuna in oil or brine, drained
1/2 tsp cayenne pepper
2 tbsp cream
Grated lemon rind and chopped
Parsley for garnishing