Preheat oven to 350 degrees.
Form cold mashed potatoes into 4 pancake patties. Combine bread crumbs, paprika, salt & pepper in a shallow bowl. Dip both sides of each pancake in seasoned bread crumbs, pressing gently so crumbs adhere.
Melt 1 Tbl. butter in a skillet over medium-low heat. Fry two patties at a time, until golden brown on both sides, add additional butter and fry remaining patties. Remove to oven proof pan and hold in 300 degree oven while frying eggs.
In same skillet, add spinach leaves, with pinch of salt & pepper and saute for 2-3 minutes until wilted. Reserve. Fry eggs in same skillet.
Serve on individual plates, with a bed of wilted spinach, a potato pancake, and a fried egg. Garnish with scallions