Preheat oven to 375 degrees.
Bring 1/4 cup of water to a rapid boil in a large skillet.
Wash spinach well in cold running water.
Remove any heavy stalks.
When water is boiling, add spinach and cook for 7 minutes.
Drain well.
Squeeze dry with paper towel.
Set aside.
Dry the skillet which was used to cook spinach and melt 4 tbsp of butter.
Saute spinach in butter for several minutes over medium high heat.
Grease an ovenproof casserole or baking dish with 1 tbsp butter.
Transfer spinach to baking dish.
Sprinkle evenly with Parmesan cheese.
Melt remaining butter and pour over spinach.
Bake in oven at 375 degrees.
When cheese has thoroughly melted, remove from oven.
Meanwhile, saute the eggs.
Serve with the spinach on a heated serving dish.
Ready in 30 min.