Tuna, Quinoa, Wild Rocket, Olive and Blackened Tomato Salad

Before I even begin to give you this recipe I have to deliver a little rant. Please make sure the tuna you use here is from a reliable and reputable source. Tuna is, as environmentalists have said, the rhinoceros of the fish world. By that, they mean the fish is becoming hunted beyond its own ability to reproduce and survive. So, if you can’t tell where the tuna you’re about to buy comes from, then please make this using another species of fish, such as salmon, sea trout, mackerel or grey m