"This delicious Stuffed Mushroom Casserole transforms my family's favorite appetizer into a super easy casserole!..."
INGREDIENTS
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16 oz sliced mushrooms, button or cremini
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1 TBSP unsalted butter
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1 cup finely chopped onion
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6 cloves garlic, smashed and minced (2 TBSP)
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3/4 cup grated mozzarella cheese
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1/4 cup grated parmesan cheese
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3/4 cup Italian seasoned breadcrumbs
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4 TBSP unsalted butter, melted
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salt and pepper, to taste (I used a pinch of each)
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fresh parsley to garnish