Spinach Feta Croissant Strata

6 croissants, cut in half horizontally

6 eggs, beaten

1 1/2 cups milk

1 package chopped spinach, thaw and drain well

1/2 teaspoon salt

1/4 teaspoon pepper and nutmeg

6 ounces grated Monterey jack cheese

7 ounces crumbled feta cheese

Arrange croissant halves with sides overlapping in a greased 9x13 baking dish. In a medium bowl, combine eggs, milk, spinach, and spices. Pour over croissants. Sprinkle cheese over spinach mixture. Cover and refrigerate 8 hours or overnight. Preheat oven to 350ºF. Uncover and bake 40 to 45 minutes or until lightly browned. Serve warm.