Barley and Lentil Soup with Swiss Chard

Name: Barley and Lentil Soup with Swiss Chard
Cuisine: Asian, Middle Eastern
Ingredients: 1 tablespoon olive oil; 1 1/2 cups chopped onions; 1 1/2 cups chopped peeled carrots; 3 large garlic cloves, minced; 2 1/2 teaspoons ground cumin; 10 cups (or more) low-salt chicken or vegetable broth; 2/3 cup pearl barley; 1 14 1/2-ounce can diced tomatoes in juice; 2/3 cup dried lentils; 4 cups (packed) coarsely chopped Swiss chard (about 1/2 large bunch); 2 tablespoons chopped fresh dill