Begin by chopping a ripe watermelon into roughly 1-inch cubes, aiming for juicy, bright pink pieces that look appealing and smell summery.
Transfer the watermelon cubes into a large mixing bowl, spreading them out evenly so you can see their vibrant color and glossy texture.
Crumb the feta cheese over the watermelon, aiming for irregular chunks that will melt slightly but keep their shape, adding a creamy, salty contrast.
Tear fresh mint leaves into small pieces and sprinkle them over the bowl, releasing a bright, herbal aroma that pairs perfectly with the fruit and cheese.
Pour in the freshly squeezed lemon juice, which will add a zesty kick that brings all the flavors to life, then drizzle with a light splash of good-quality olive oil for richness.
Gently toss everything together using a spatula or large spoon, ensuring the ingredients are combined without breaking the feta or crushing the watermelon too much, so the salad remains juicy and crisp.
Finish by cracking fresh black pepper over the top to add a smoky, spicy note, then give the salad a final gentle stir to distribute the pepper evenly.
Serve immediately in chilled bowls or on a platter, allowing the juicy watermelon, creamy feta, and aromatic mint to shine in every bite.