You already cook dinner. The hard part is done. Yet somehow leftover containers linger in the fridge until they become science experiments. This book flips the script: leftovers aren't a failure or a chore—they're your most powerful kitchen shortcut. Learn to cook with intention, doubling up ingredients and portions so tomorrow's meal is already half-made. No complicated systems, no guilt about takeout nights. Just practical strategies for turning extra roasted vegetables into a frittata, last night's grains into a grain bowl, and shredded chicken into three different meals. You'll save money, cut food waste, and reclaim minutes every single day. Whether you feed a family or just yourself, these techniques work with real schedules, real budgets, and real tiredness. No fancy equipment, no all-day cooking marathons—just smarter habits that make dinner easier. Part of The Tired Cook's Library.