1. Drain the tuna and flake with a fork into small chunks. Put the tuna in a shallow ovenproof dish and squeeze the lemon juice over the top.
2. Add the spring onions, chopped tomatoes, capers (if using) and cooked pasta. Mix lightly together and season with salt and pepper.
3. Sprinkle the breadcrumbs evenly over the top and spray lightly with Fry Light.
4. Bake in a preheated oven at 200°C/Gas 6 for 20-25 minutes, until bubbling and golden brown on top. Sprinkle with parsley and serve immediately.