Beef, Barley, and Sweet Potato Stew

Ingredients

• 1 tablespoon extra-virgin olive oil
• 2 pounds beef stew meat
• 1 tablespoon all-purpose flour
• 2 cups chopped onions
• 1 cup sliced celery with leaves
• 4 cups low-sodium beef broth or stock
• 1 bay leaf
• 3/4 cup hulled barley, rinsed and drained
• 4 cups peeled sweet potato chunks, 1-inch squares (about 1 1/2 pound)
• 2 cups sliced carrots, 1-inch rounds
• 1 1/2 cups cubed parsnips
• 1/2 tablespoon Worcestershire sauce
• 1 teaspoon dried oregano
• 1 28-ounce can whole tomatoes in juice, broken apart
• 1 1/2 cups frozen peas