Melon Salad with Prosciutto

INGREDIENTS

• 2 cups sliced seeded watermelon
• 2 cups sliced seeded honeydew melon
• 1/3 cup very thinly vertically sliced red onion
• 1 serrano pepper, very thinly sliced
• 2 ripe nectarines, pitted and sliced
• 1/4 teaspoon kosher salt
• 3 tablespoons fresh lemon juice
• 2 tablespoons olive oil
• 1 1/2 tablespoons honey
• 4 cups arugula
• 1/4 cup torn fresh mint leaves
• 3 ounces prosciutto, very thinly sliced
• 1/2 ounce pecorino Romano cheese, shaved