- Step 1
Place beef and flour in a large snap-lock bag. Season. Seal. Shake to coat. Heat half the oil in a large pan over medium-high heat. Cook beef, in batches, until browned all over. Transfer to bowl of slow cooker.
- Step 2
Heat remaining oil in pan. Add onion, eggplant and zucchini. Cook, stirring, for 5 minutes or until onion is softened. Add garlic. Cook, stirring, for 1 minute. Transfer mixture to slow cooker. Add tomatoes, tomato paste, red wine and stock. Season with pepper. Stir to combine.
- Step 3
Cover with lid. Cook on low for 6 hours or until beef is very tender, stirring halfway during cooking. Stir in basil. Serve with polenta.