Stirfry? Rump is a good cut for stirfry. Thai beef salad?

You could do a nice sauce with it, mushroom, white wine and garlic (gently fry sliced mushrooms, add garlic, reduce a splash of white wine, add pepper and a little bit of fresh thyme or a pinch of mixed herbs, pouring cream and simmer until reduced slightly. Is also nice with a bit of finely chopped parsley.).