1. Heat oil in a large nonstick skillet over medium-high heat. Sprinkle beef with 1/2 teaspoon salt and 1/4 teaspoon pepper; dredge in flour. Add beef to pan; sauté 2 minutes, browning on all sides. Place beef in an electric slow cooker. Add onions and garlic to pan; sauté 5 minutes. Add wine to pan, scraping pan to loosen browned bits. Place onion mixture in cooker. Add broth, tomato paste, bay leaves, thyme, and tomatoes to cooker; top with zucchini and carrots. Cover and cook on LOW 8 hours or until beef is tender. Stir in remaining 1/2 teaspoon salt and remaining 1/4 teaspoon pepper. Discard bay leaves and thyme sprigs.