It took me a while to post this one, but I started with the Lamb Casserole leftovers from https://chefbanana.wordpress.com/2010/01/21/lamb-casserole/
I cooked the cubed potatoes on medium heat in a few tablespoons of olive oil until they were crispy and golden.
I microwaved a ramekin of the leftover casserole for a couple minutes and then dropped an egg and the casserole into a frying pan.
Once the egg was cooked through and the casserole evenly warmed up I cracked two more eggs on top and cooked them until the yolk was just warm.
I plated it up by putting the potatoes down first, then the casserole, then the fried eggs. I topped it with grated sharp cheddar, salt, pepper, and mustard.