Spinach Gratin

Spinach Gratin

Ingredients:
butter, without salt
onions, raw
wheat flour, white, all-purpose, unenriched
spices, nutmeg, ground
cream, fluid, heavy whipping
milk, fluid, 1% fat, without added vitamin a and vitamin d
spinach, raw
cheese, parmesan, hard
salt, table
spices, pepper, black
cheese, gruyere

Directions:
Preheat the oven to 425 degrees F.
Melt the butter in a heavy-bottomed saute pan over medium heat.
Add the onions and saute until translucent, about 15 minutes.
Add the flour and nutmeg and cook, stirring, for 2 more minutes.
Add the cream and milk and cook until thickened.
Squeeze as much liquid as possible from the spinach and add the spinach to the sauce.
Add 1/2 cup of the Parmesan cheese and mix well.
Season, to taste, with salt and pepper.
Transfer the spinach to a baking dish and sprinkle the remaining 1/2 cup Parmesan and the Gruyere on top.
Bake for 20 minutes until hot and bubbly.
Serve hot.