Heat an oval dutch oven (any braising dish will work, although Grandma always used an oval, about 5 qts, which happened to be what I have too) over medium high heat. When it is hot, add the oil and heat it to shimmering. In the meantime, dry the beef thoroughly and coat and rub it in salt and pepper. Be generous here, there should be a decent coat of salt on the meat. Place the beef in the heated oil and sear on all sides. Take your time and let a crust develop before turning it. Get as many sides as you can--due to shape you may miss some, which is ok.
Bring to a boil on the stovetop over medium high heat and add the noodles. When the noodles are done, take notice of now thick or watery the sauce is. If it is too watery, let it simmer, uncovered. Mix 1-2 tablespoons flour (depending on how watery you think it is) with the equivalent of cold water and add it to the sauce. The finished dish should be saucier than mine looks (see notes above about my stock problem). Taste for salt and pepper.