Watermelon Heirloom Tomato and Feta Salad

-                  3 tbsp extra virgin olive oil

-                  2 tbsp chopped mixed fresh herbs

-                  1 tbsp fresh lemon juice

-                  ½ tsp kosher salt

-                  4 heirloom tomatoes cut into chunks

-                  1 cup cubed red seedless watermelon

-                  1 cup cubed seeded yellow watermelon

-                  ¼ cup vertically sliced red  onion

-                  ½ cup crumbled feta cheese

Whisk together first 4 ingredients in a large bowl. Add tomato ,watermelon, and onion toss to coat. Sprinkle with cheese toss gently.