Easy Keto Zucchini Frittata

By Fioa

4.71 / 5

10min

25min

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1 tablespoon butter
1 onion sliced
1 zucchini large, thinly sliced
½ teaspoon sea salt
¼ teaspoon ground black pepper
3 eggs
½ cup heavy cream
¼ teaspoon ground nutmeg
1 cup shredded Gouda cheese