Preheat oven to 400F. Grease an 8x11" pan with the 1 Tbsp. butter and set aside.
Whisk eggs with the salt, pepper, and cream. Pour into prepared dish. Bake uncovered for 10 min. Stir and bake for another 5 min. Repeat every 5 min. until almost completely set, don't overcook. May take a total of 20-25 min. Top with cheese and bake until melted. Serve immediately.
Nutrition calculation is an estimation only. If you need nutritional calculations for medical reasons, please use a source that you trust.