For extra depth, blend in a squeeze of lemon or a pinch of chili flakes. Stir in add-ins like spinach, roasted peppers, or sautéed mushrooms after tossing the pasta with the sauce. Storage: refrigerate within 2 hours in an airtight container for 3–4 days. Reheat gently on the stovetop with a splash of milk or pasta water, or microwave in 30-second bursts, stirring between intervals.