1. Combine first 6 ingredients in a meduim bowl. Add pork, tossing to coat.
2. Heat a large nonstick skillet over medium-high heat. Add pork to pan. Cook 5 minutes or until pork is lightly browned on all sides. Place pork in a 4-quart electric slow cooker.
3. Add onion and garlic to pan; reduce heat to medium, and sauté 5 minutes or until onion is crisp-tender. Stir in flour. Add wine, scraping pan to loosen browned bits. Add tomato to onion mixture. Spoon onion mixture over pork. Cover and cook on LOW for 7 hours or until pork is tender. Serve over rice; sprinkle with cilantro.