How to Make It
In a large bowl, whisk the oil, lemon juice, salt, Tabasco and pepper. Add the watermelon, feta, olives and onion and toss gently. Garnish with the mint and serve.
Although Pepin cuts a small, seedless watermelon into rounds with a melon baller (adding the trimmings to the salad, too, so as not to waste them), you can also chop the watermelon into cubes.