In a medium frying pan over medium heat, cook bread crumbs in olive oil until they begin to crisp, 4 minutes. Stir in salt and pepper and add seasoning (either lemon zest, paprika, or rosemary). Cook, stirring, until crumbs are golden and crisp, 2 to 5 minutes. Stir in parsley; pour into a bowl. Keeps, chilled airtight, up to 2 days.