Tomato and Watermelon Salad

Ingredients (8)

• 3 ripe tomatoes, chopped
• 1/2 small seedless watermelon, chopped
• 1/2 small red onion, sliced thin
• 2 tablespoons red wine vinegar
• 2 tablespoons olive oil
• 3-4 ounces feta cheese, cubed
• Fresh mint
• Sea salt