Watermelon-Cucumber Salad with Feta

Ingredients

• ½ cup crumbled feta cheese
• 1 teaspoon lime zest
• 2 teaspoons avocado oil or olive oil
• 4 cups watermelon, cut into 1-inch cubes
• 1 cup cucumber, diced (may peel, if desired) 
• Juice + zest of 1 lime (about 1 tablespoon juice)
• ¼ teaspoon fine salt
• ¼ cup fresh mint leaves, roughly chopped or torn
• 2 tablespoons thinly sliced red onion or shallots
• 3 cups arugula or other greens of choice