"For a simple and scrumptious appetizer or side dish, try this garlic butter portobello mushroom recipe. We love serving these next to steak dinner!..."
INGREDIENTS
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3 large portobello mushrooms
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1 ½ tablespoons olive oil
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2 tablespoons butter (divided)
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¼ teaspoon thyme
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1 clove fresh garlic
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2 tablespoons panko bread crumbs
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1 tablespoon grated parmesan cheese (optional)