In large skillet, cook bacon over medium-high heat until crisp; transfer bacon to a slow cooker.
Meanwhile, season chuck roast with half of one package of chili mix. Add beef to bacon fat in skillet. Sauté until beef is browned; transfer to slow cooker.
In large bowl, combine remaining ingredients; add to slow cooker. Cover and cook on HIGH 4-6 hours or LOW 8-10 hours or until beef is fork tender.