In a large bowl, combine 4 tablespoons flour, salt if desired and 1/4 teaspoon pepper. Add beef, a few pieces at a time, and turn to coat. , In a Dutch oven over medium-high heat, brown beef in oil in batches. Remove and set aside. Add onion to the pan and cook until tender. Add garlic; cook 1 minute longer. Stir in remaining flour and pepper until blended. Gradually stir in broth. Add the beef, tomatoes and thyme. Cover and bake at 350° for 1-1/4 hours. , Add the potatoes and carrots. Cover and bake 1 hour longer or until meat and vegetables are tender. Stir in peas; cover and let stand for 5 minutes before serving.