Tuna salad is a great anytime meal, perfect for lunch, as a snack, or a last minute dinner, but it can get a little bland.

The simple sauce highlighting lemon and capers tastes great on almost any grilled fish. Swordfish or salmon are especially good choices. If you opt for a fish that's not tuna, adjust the cooking ...

Add the lemon juice and a grind of black pepper (if using) – and whisk. Either pour the sauce over the fish or, using a fish slice, remove the fish to individual plates and spoon over the sauce.

Return the pan to a high heat, and add the lemon juice. Allow the lemon, caper and butter sauce to bubble in the pan for 30 seconds, then pour over the fish and mash to serve.