Bring a pot of water to the boil and cook the potatoes until soft; drain.
Heat the olive oil in a large frying pan on a high heat, and fry the potatoes, and corned beef. Add the Worcestershire sauce. Fry until the potato is crisping up slightly. if your pan isn't big enough for everything, fry in batches.
Add in beans and sausages, breaking up the sausages with a spoon as you combine with the rest of the ingredients and season with a little pepper.
Transfer into a large ovenproof dish and top with grated Cheddar.
Bake in the preheated oven until cheese is bubbling and golden, about 15 minutes.