3) fry the onion, garlic, pepper and mushrooms in a little oil in a pan for 5-7 minutes.
Step 4:
4) add the sardines, tomatoes and seasoning and allow to cook until the pasta is cooked through.
Step 5:
5) once the pasta is cooked, drain and mix together with the sauce and place in a dish, sprinkle the cheese on top and place under the grill for 10 minutes