Try this homemade Nana'S Spinach Casserole recipe the whole family will love. Made with spinach, mushroom soup, margarine and egg whites. Easy step-by-s…
This Nana'S Spinach Casserole relies on simple, everyday ingredients such as box frozen chopped spinach, mushroom soup, melted margarine and beaten egg whites. It comes together quickly and makes 4 servings, at about 282 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026