This salad is best made one hour or less before your meal. Make as much as you think will be eaten, because it's not good to save as a leftover for next day.

Cut rind from the watermelon, then chop the fruit into chunks.

Peel the cucumber and chop it in half slices.

Add the finely sliced onion.

Here is the secret ingredient - freshly chopped mint!

In a small bowl, whisk together olive oil, lime juice, salt and pepper. Combine watermelon, cucumber, feta, red onion, and mint. Pour over dressing, tossing to combine.