For the Watermelon Salad: 
6 cups cubed watermelon 
½ cup feta cheese, cut into 1/4-inch cubes
1/3 cup fresh mint leaves, chopped
1/3 cup fresh basil leaves, chopped
Optional adds: Chopped tomato, chopped red onion, avocado 

For the Summer Vinaigrette:
1/4 cup apple cider vinegar
1/2 neutral oil, like avocado oil
1 tsp of honey 
1 tsp Dijon mustard
Salt and pepper