Refreshing Cucumber Watermelon Salad

1 small red onion, halved and sliced into thin half-moons

2 tablespoons lime juice, or more to taste

2 tablespoons extra-virgin olive oil

1 seedless watermelon, cut into cubes

3 baby cucumbers, seeded and cut into cubes

1 cup crumbled feta cheese

½ cup mint leaves, sliced thinly

Mix red onion with lime juice in a bowl; set side to marinate at least 10 minutes. Stir olive oil into mixture.

Toss watermelon, baby cucumbers, and feta cheese together in a large bowl. Pour the red onion mixture over the watermelon mixture; toss to coat. Sprinkle mint over the salad; toss.