INGREDIENTS
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1 cup fresh flat-leaf parsley leaves
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2 1/2 tablespoons olive oil, divided
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1 tablespoon fresh oregano leaves
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2 teaspoons sherry vinegar or white wine vinegar
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1/8 teaspoon crushed red pepper
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2 garlic cloves, divided
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1 green onion, coarsely chopped
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1 pound flank steak, trimmed
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1/2 teaspoon kosher salt
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1/2 teaspoon freshly ground black pepper
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Cooking spray
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4 (1-ounce) slices whole-grain bread or Italian bread