Quarter tomatoes and cut into 1 cm pieces. Peel the cucumber and cut into thick slices. Peel and halve the onions and cut lengthways into thin wedges. Wash the peppers, quarter them and cut across into strips.
Peel and halve the garlic clove and rub it in a large salad bowl. Put the prepared ingredients in the bowl and mix in the olives.
Mix the ingredients for the dressing and pour over the salad, mix well. Save a few drops for garnish. Drain the feta cheese and cut into pieces. Spread on the salad and drizzle with some dressing.