In a large bowl, combine first 6 ingredients (eggs through sage). Crumble the ground beef on top then, using your very clean hands, blend well (mixture will be moist).
Shape mixture into a round loaf and place it in a lightly oiled slow cooker. Cover and cook on LOW for 5 to 6 hours or until a meat thermometer inserted in the center reads 160 degrees.
In a small bowl, whisk together ketchup, brown sugar, mustard and Worcestershire sauce. Soon mixture over meatloaf.
Cover and cook for 15 minutes longer or until heated through. Let meatloaf stand for 10 to 15 minutes before slicing. Serve and enjoy!!