Melon Salsa

Ingredients

• 2 cups diced orange-fleshed melon, such as Charentais (1/4- to 1/2-in. cubes)
• 1 cup diced cucumber (1/4- to 1/2-in. cubes)
• 1/2 cup finely chopped red onion
• 1 serrano chile, stemmed, halved, and sliced
• 1/2 cup roughly chopped cilantro
• 3 tablespoons lime juice
• 1 tablespoon vegetable oil
• 1 teaspoon kosher salt