INGREDIENTS
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1 (15 count) package frozen mini fillo shells, thawed
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1 tablespoon butter
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1/2 cup finely chopped fresh mushrooms
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1 tablespoon flour
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3/4-1 cup heavy cream
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1 cup chopped frozen green beans (thaw before chopping)
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1/8 cup grated Parmesan cheese
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Pinch of onion powder
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Salt and pepper, to taste
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1/4 cup French fried onions