Start by preparing your ingredients: dice the watermelon into bite-sized pieces, crumble the feta cheese, chop the mint leaves, and thinly slice the red onion.
In a large bowl, combine the diced watermelon and red onion. Gently toss to mix.
Add the crumbled feta cheese and chopped mint leaves to the bowl.
Drizzle the olive oil over the salad and, if desired, add balsamic glaze for an extra tangy flavor.
Season the mixture lightly with salt and pepper to taste. Toss everything together gently to avoid breaking apart the feta.
Let the salad sit for about 10 minutes to allow the flavors to meld.
Serve chilled or at room temperature, depending on your preference.
Notes
Let the salad sit for a few minutes to enhance the flavors.