Your mixture will resemble mashed potatoes. Now stir in the nutmeg, salt and pepper
And then the spinach...
and lastly, the the hard boiled eggs.
Spread the spinach mixture in a greased casserole (I used a glass one that was about 9 x 11 but you could use a little bigger or smaller if you wanted) Cover with foil and bake at 350 for 20-25 minutes until it is thoroughly heated.