HOW TO MAKE STOUFFER‘S SPINACH SOUFFLÉ: Preheat oven to 350 degrees and spray an 8×8 baking dish with vegetable oil spray. With a whisk or a hand mixer in a large bowl, beat the heavy cream and eggs 2 to 3 minutes until foamy. Add in the spinach, parmesan cheese, flour, nutmeg, cayenne pepper, salt and pepper.
Freeze: You can keep your Stouffer’s Spinach Soufflé in the freezer for up to 6 months. Keep it tightly wrapped, and when you’re ready to reheat it, thaw the soufflé in the fridge. Heat your Stouffer’s Spinach Soufflé in a toaster oven, or on the center rack of a conventional oven.
For a creamier, more decadent dish, make cream cheese spinach soufflé by adding about 4 oz of softened cream cheese to the mixture before baking. Low-Carb: If you want to make a Keto Stouffer’s Spinach Soufflé, switch out the all-purpose flour and heavy cream for Keto-friendly items like almond flour and cottage cheese or cream cheese.
Beat egg whites until fairly stiff, but not dry. Fold them gently into spinach mixture until all white streaks are gone. Pour into souffle dish and sprinkle cheese on top. Bake 45 minutes to one hour until set. (Souffle is done when puffy and nicely browned.