Combine the flour, salt and pepper in a large resealable plastic bag. Add beef, a few pieces at a time, and shake to coat., Brown meat in batches in oil in a large skillet; drain. Transfer to a 5-qt. slow cooker. Add the beans, corn, potatoes, carrots, celery and onion., Whisk the tomato sauce, water, taco seasoning and cumin; pour over top. Cover and cook on low for 8-10 hours or until meat is tender. Serve with tortilla chips and cheese.