Hearty Pioneer Woman Slow Cooker Beef Stew

Ingredients

• 2 pounds beef chuck roast, cut into 1-inch cubes
• 3 tablespoons vegetable oil
• 1 teaspoon salt
• ½ teaspoon black pepper
• 1 medium onion, diced
• 3 cloves garlic, minced
• 4 cups beef broth
• 4 large carrots, sliced
• 3 stalks celery, diced
• 2 medium potatoes, diced
• 2 bay leaves
• 1 teaspoon dried thyme
• 1 tablespoon Worcestershire sauce