A 41-year-old woman, whom was recently diagnosed with Type 2 Diabetes, returns to your community clinic seeking additional advice on how to lose weight. She eats an omnivorous diet that includes occasional whole grains, few fruits and vegetables, and a high amount of processed snack foods. Nearly all of her meals come from take-out restaurants. She does not know how to cook but is willing to learn. Which of the following approaches is most likely to help her maintain sustainable behavior change to meet her goal?