Preheat the oven to 180 degrees C. Place the flour, onions and beef into a large resealable food bag.
Add salt and pepper then seal bag and shake well so all of the meat and onions are lightly covered in flour.
Heat the olive oil in a large frying pan over medium-high heat and add the contents of the bag into the pan to sear the meat. Next, pour in all of the beef stock and let simmer gently for a few minutes.
Pour contents of the frying pan into a casserole dish. Place the potatoes in the casserole dish so half of each potato quarter is above the surface, half below.
Bake in a preheated oven for 2 hours, or until meat is tender and the potatoes are cooked through.