Grease a pie dish with 1 tablespoon of butter. Preheat the oven to 425°. Add the other 2 tablespoons of butter to a skillet and saute the zucchini for 2-3 minutes over high heat. Transfer the zucchini to a strainer over a bowl or the sink and let them drain while you prepare the rest of the dish.

Mix together the eggs, cheeses, half and half, and salt and pepper. Evenly layer half of the zucchini on the bottom of the pie dish, carefully add the egg mixture. Then working in a spiral, carefully add the rest of the zucchini to the top. Bake at 425° for 20-25 minutes or until it is browned a little on the top and set. Let it cool for 5-10 minutes before slicing into wedges.