Toast the raw pumpkin seeds in a dry skillet over medium heat for exactly three minutes, shaking frequently so they don't burn on one side. This step matters because store-bought toasted versions lose their freshness sitting on shelves for weeks. I always do this first thing so they cool completely before adding them—warm seeds release oils that turn slightly rancid.

Cut your watermelon in half, scoop out the flesh into a cutting board, and cube it into roughly one-inch pieces. The reason for this size is that smaller cubes release too much juice into the dressing, making everything watery by serving time. I've definitely learned this the hard way after showing up to Marco's barbecue with a soggy bowl.

Whisk together the lemon juice, honey, olive oil, sea salt, and black pepper in a small bowl for about one minute until the honey dissolves completely. Taste this dressing now—you want it to punch your palate because the watermelon's sweetness will mellow everything out. I always adjust salt here rather than at the end because once feta hits the bowl, adding more salt feels risky.

Dice your cucumber and thinly slice the red onion separately, keeping them in their own containers until the very last moment. The reason we hold them back is that raw vegetables sitting in lemon juice will soften significantly—you want them still snappy when people take their first bite. I learned this lesson when I prepped everything the morning of a dinner party and ended up with cucumber mush.

Place the cubed watermelon into your serving bowl and pour the dressing over it gently, folding with a rubber spatula for about two minutes. Avoid aggressive mixing because you want watermelon chunks to stay intact, not break down into juice. This is where patience actually changes the final result.

Fold in the crumbled feta cheese using the same gentle motion, then add the cucumber and red onion right before serving. Now scatter the cooled toasted pumpkin seeds across the top, followed by the lime zest torn mint leaves. These final additions stay on top intentionally because they'll begin losing their texture and brightness the moment they hit the cold salad.