Wash and halve the tomatoes. Remove the stalk and cut the tomatoes into slices. Pluck the leaves from the mint and roughly chop. Peel the shallot and cut into thin rings. Core the dates and cut into slices.
Put all prepared ingredients in a bowl and season with lemon juice, chili powder, salt and pepper. Crumble the feta cheese and sprinkle over the salad. Drizzle with the oil and serve.