This was fabulous, Adria82. The little bit of kick from the mustard really added a nice touch to the roast as well as the gravy. We really enjoyed it. Thanks for sharing your recipe. I'll definitely make this again. Made for Spring 2014 Pick-A-Chef.
My DD's 24th Bday was yesterday and for her dinner, she requested roast beef, mashed potatoes/gravy and corn and of course her favorite cake. We had this with your Mascarpone/chive potatoes for a wonderful meal. This is similar to the way I make my normal roast beef, but I use garlic instead of onion and don't use the mustard, which did add a tang. I really enjoyed the added onion flavor to the gravy, but DD stated she preferred my normal way but this was still very good. Sometimes I think we all tend to like what we are used to, as I thought this was very nice. Thank you for all 3 of your recipes that I enjoyed trying during the Pick A Chef Event for Fall 2011.