Before you head to the grocery store, you need a plan, which will actually save you time from wandering the aisles, trying to decide what to make for the week. If you're new to meal prepping, maybe you just want to plan out dinners. Or maybe you're going full force into meal prepping and you know what you're going to eat for breakfast, lunch, and snacks, too. After you plan, make a shopping list and hit the grocery store so you have everything ready by Monday.