"This is a super tasty steak dinner! Throw some medium or large shrimp in with the onion mixture for a surf and turf meal. Prep time does not include marinade time...."
INGREDIENTS
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1 lb flat iron steak
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1⁄2 cup zesty Italian dressing, divided
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1⁄3 cup sour cream
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4 1⁄2 teaspoons parmesan cheese, grated
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3⁄4 teaspoon course black pepper
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1⁄4 teaspoon sea salt
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2 garlic cloves, chopped
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1 large onion, thinly sliced