Try this Berek it's lush. I like to call it 'Corned beef Surprise'
1 x shepherds pie dish
Bottom layer of sliced Corned beef
Then a layer of Heinz baked beans
Sprinkle some chopped onion on
Then repeat so you have two layers of corned beef, then beans, then onion
Then comes a layer of mashed potato to fill the dish like a shepherds pie
Sprinkle with some cheese
Bang it in the over on about 190 for 40 mins
Done!
you will not regret it
