In heavy plastic bag, shake together flour, salt and pepper. In batches, add beef and shake to coat, reserving any remaining flour. In Dutch oven, heat oil over medium-high heat; brown meat all over, in batches and adding up to1 tbsp (15 mL) more oil if necessary. Transfer to plate.
Reduce heat to medium-low. Add onions, garlic, thyme, oregano, bay leaf and remaining flour; cook, scraping up brown bits from bottom of pan, until softened, about 5 minutes. Return beef and any accumulated juices to pan.
Meanwhile, cut carrots, celery and rutabaga into 2-inch (5 cm) chunks. Add to pan along with stock and tomatoes; bring to boil. Reduce heat, cover and simmer over medium-low heat or in 325°F (160°C) oven, stirring once or twice, for 1-1/2 hours. Add potatoes; cook for 1 hour or until tender. Add peas and vinegar; cook for 2 minutes. Discard bay leaf. Stir in parsley.