Juicy summer watermelon, salty crumbled feta, fresh mint, and a bright lime dressing. This is the salad that disappears first at every cookout -- make a double batch.
Prep watermelon: Cut watermelon into triangles or 1Β½-inch cubes. Arrange in a single, slightly overlapping layer on a large platter.
Soak the onion: Place sliced red onion in a small bowl of cold water for 10 minutes. Drain and pat dry -- this removes the harsh bite and leaves the flavor.
Make the dressing: Whisk together lime juice, lime zest, olive oil, and honey until combined. Season with a pinch of salt.
Assemble: Scatter drained onion over the watermelon. Break feta into large rustic chunks over the top. Tear mint and basil leaves and scatter generously.
Dress and serve: Drizzle lime dressing over the top. Finish with flaky sea salt, cracked pepper, and balsamic glaze if using. Serve immediately.