Mediterranean Braised Green Beans with Mint and Feta Cheese

Name: Mediterranean Braised Green Beans with Mint and Feta Cheese
Ingredients: 3 tablespoons extra-virgin olive oil; 1 onion , chopped fine; 4 garlic cloves , minced; 3/4 teaspoon ground allspice; Pinch cayenne pepper; 1 1/2 cups water; 1/2 teaspoon baking soda; 1 1/2 pounds green beans , trimmed and cut into 2- to 3-inch lengths; 1 tablespoon tomato paste; 1 (14.5-ounce) can diced tomatoes , drained with juice reserved and chopped coarse; 1 teaspoon salt; 1/4 teaspoon pepper; 2 tablespoons chopped fresh mint; red wine vinegar; 2 ounces feta cheese , crumbled (1/2 cup)