How do I start meal prepping as a beginner?

Start smaller than you think. Instead of a five-hour Sunday cook-a-thon, prep one dinner or one component you can stretch across two or three nights, because the all-in version is exactly what makes beginners quit by week two. Batch a grain or a protein, wash and chop your veg once, and keep a couple of no-cook backups for the night the plan slips. Prep is far easier when the deciding is already done, which is where GroceryChef helps: it gives you the week and the list, so the only thing left is the cooking you choose to do ahead.