No matter how much you love cooking, sometimes it's hard to summon the energy to whip up a midweek dinner after a long, busy day. So why not plan your evening meals with leftovers in mind? Cook a little extra, and you'll have the base of another tasty recipe to eat the next day – plus, it'll help keep your food bills down and avoid anything going to waste. Read on for our collection of creative dinner-to-lunch ideas, from easy takes on roast dinner leftovers to a clever way to use up day-old risotto.