Lentil and Sweet-Potato Stew - Whole Living

Ingredients

• 2 tablespoons canola oil
• 1 medium onion, chopped (about 1 cup)
• 2 medium carrots, peeled and chopped
• 2 medium celery ribs, chopped
• 1 bay leaf
• 1 garlic clove, minced
• 1 1/2 teaspoons curry powder
• 2 cups dried brown lentils, picked over and rinsed
• 2 medium sweet potatoes (about 1 pound), peeled and cut in 1/2-inch dice
• 1 package (9 ounces) frozen cut green beans
• 1 (14 1/2-ounce) can diced tomatoes in juice
• 1/2 cup chopped fresh cilantro leaves
• Coarse salt and black pepper
• Plain low-fat yogurt, for serving