I have enjoyed corned beef and cabbage on St. Patty's day my whole life. I can't remember where I found this recipe, but it's the best I have ever had. My very picky mom completely agrees! The mustard sauce is a nice touch but can be completely optional. I love the sauce they serve with their corned beef and cabbage at Kells, so I tried to find something similar and this is what I came up with. I also like to omit the baby potatoes and add extra carrots, serving the dish with mashed potatoes on the side instead. This dish is simple and very tasty.