Roast Beef Sandwich with Dunking Gravy

I know you don't need a recipe for a roast beef sandwich but I wanted to share this with you, think of it as more inspiration than recipe.  We had roast beef, not something I do often as it gives me the fear.  I'm always convinced I will mess it up and waste quite an expensive lump of meat.  On this occasion I'm happy to say it was a success and not only was it cooked perfectly but there was enough on the joint to get a further 2 meals out of it.

Who doesn't like a roast beef sandwich, especially when the meat is pink and thinly sliced .  I've pimped it slightly with loads of fried onions but what really makes it is the pot of gravy on the side for dunking.  Oh my word, this is comfort food at its most ultimate, please give it a go, you won't regret it.