"This easy keto zucchini gratin is made with a cheesy mascarpone sauce. It's a tasty side dish that is simple to make for a family dinner...."
INGREDIENTS
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3 zucchini (sliced into rounds)
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1 onion (chopped)
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2 cloves garlic (chopped)
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1/2 cup Parmesan cheese (grated)
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8 oz Mascarpone cheese
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1 egg
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2 oz Cheddar cheese
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2 oz Mozzarella cheese
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3 tablespoons olive oil
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1 teaspoon salt
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1 teaspoon black pepper