This watermelon salad recipe is one of our favorite summer side dishes! Salty feta cheese, crisp cucumber, and fresh mint accent the sweet, juicy watermelon. Easy and refreshing, it's perfect for a hot day.
Make the dressing: In a small bowl, whisk together the olive oil, lime juice, garlic and salt.
Arrange the watermelon, cucumber, and red onions on a large plate or platter. Drizzle with half the dressing. Top with the feta, avocado, mint, and serrano pepper, if using, and drizzle with remaining dressing. Season to taste and serve.