Ingredient Substitutions: If you’re looking to reduce calories, substitute half the olive oil with vegetable broth. For a dairy-free option, try nutritional yeast in place of Parmesan cheese. Optional Variations: Add chili flakes for heat or swap smoked paprika for a deeper flavor. Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven to restore crispiness.