time but they're too busy to cook. >> how much time are you spending grocery shopping? >> probably a good two, three hours a week, by the time you put all the different trips together. >> reporter: this is where erin comes in. she's about to give the kings a much-needed food makeover. one shopping trip, five family dinners. but can she do it on a shoe string budget? the makeover starts with a kitchen audit. first, i'm impressed. it's nice and organized. >> reporter: tip one, know what you have. >> i love that you have these red peppers. what i especially love about them is you can dice them up small and sneak them into a sauce and your kids will never know. they're getting a serving of veggies. >> reporter: tip number two, don't waste food. americans throw away nearly half of the food they buy, costing a staggering $165 billion a year. that's over $2,000 per family.