This dish can be made with leftover corned beef or roast beef or pork. With beef, I usually use cooked potatoes. With pork, it's good with leftover sweet potatoes or cooked turnips. Chop onions and bell peppers (we also use jalapenos) into small pieces and saute them in bacon grease till they're soft. Then put the meat and veggies, which are also in small dice, in the pan and cook till it's all nice and brown.