This hearty slow cooker meal transforms beef round steak into tender Swiss steak alongside red potatoes and baby carrots. Using a base of diced tomatoes with Italian herbs and rich beef gravy creates a deeply savory sauce with minimal effort. It is an ideal weeknight dinner that cooks low and slow while you go about your day. The vegetables absorb the rich beef broth, resulting in a comforting, melt-in-your-mouth dish.