Step 1: Chop onions and garlic into squares.
Step 2: Heat the oil in a frying pan
Step 3: Add onions and garlic and fry until soft
Step 4: Add tomato puree and cook for 5 mins, stirring regularly
Step 5: Add the tuna, a quarter of a tsp of chilli and tumeric powder, salt and pepper.
Step 6: Add just enough boiled water to cover the mixture, cover and simmer for 10 minutes, adding more water if you need to.
Step 7: Cook pasta according to packet instructions.
Step 9: Serve pasta onto a plate and cover with the tuna mixture.