Seared Tuna & Cucumber Relish

I fancied a light dinner tonight, after having had some creamy, rich meals this week! I picked up a tuna steak in Morrisons, and made this light relish to go with it. You could add some boiled new potatoes too, or maybe a rice salad. I used the very last of my fresh parsley making this, I don't think I'll have much more grow now before spring :( I maybe have to buy a pot to keep on my windowsill until the garden flourishes again. Do any of you grow your own herbs?

Serves 4

3 tbsp olive oil
4 tuna steaks , about 140g/5oz each
½ cucumber
2 spring onions , finely chopped
1 medium tomato , finely chopped
½ large red chilli , seeded and finely chopped
1 tbsp olive oil
2 tbsp chopped parsley
1 tbsp lime or lemon juice

 Put the oil into a food bag and add the tuna steaks. Rub well together and leave for 30 mins while you make the relish. Peel the cucumber, halve lengthways and scoop out the seeds. Chop the flesh into a small dice. Mix with the rest of the ingredients, seasoning to taste. Set aside.
Heat the pan to hot, then cook the steaks, turning after 2 mins, and cooking for another 2 mins each side depending on the thickness of the steaks. Remove the steaks from the heat allow to stand for 3-5 mins, then spoon over the relish and serve.