Thoroughly rinse and drain the quinoa in cold water.
Place the quinoa in a pan with 1 cup water and a pinch of sea salt and bring the water to the boil.
Reduce the heat to simmer, cover the pan and cook for 15 minutes.
Set aside to cool.
Combine the herbs, sesame seeds, tomatoes cucumber and tuna through the quinoa.
Mix the olive oil, lemon juice and garlic together and stir through the salad.