Combine the crust ingredients in a medium sized bowl and mix well. Press mixture firmly and evenly into a 9 x 9 or equivalent (I used 8 x 11) oven proof pan, going up the sides at least 2 inches.Bake in a preheated oven at 400 degrees for 20 minutes or until slightly golden brown.Remove and reduce oven heat to 350 degrees.Beat the eggs in a large bowl and add the cream, almond milk, nutmeg, salt, and pepper.Stir in the spinach.Spread the ham and cheese evenly over the par-baked crust in the bottom of the pan.Gently pour the egg mixture over the ham and cheese.Bake the casserole in the 350 degree (F) oven for 60 minutes or until the middle is set and doesn't jiggle when shaken.Note: If your edges are getting too brown, cover the casserole lightly with foil in the last 15 minutes of baking.Cool for 10 minutes before cutting.