Pour grated tomato back into bowl. Add oil, preserved lemon, lemon juice, garlic, salt, pepper and sugar, if using, to grated tomato and stir well to combine. Return dressing to measuring cup.

Preserved lemon adds an unexpected umami complexity and zing to a simple tomato pasta. The best bit? It comes together in double quick time. Heat oil in a large non-stick frying pan over high heat.