The 3-3-3 rule for meal prep is a simple way to plan a week of meals without overcomplicating your shopping list or cooking schedule: pick 3 breakfasts, 3 lunches, and 3 dinners you can mix and match. Instead of prepping seven completely different days, you rotate a small set of reliable meals, which helps reduce food waste and decision fatigue.
Start by choosing three options for each meal category:
Once you’ve selected your nine meals, build your grocery list around overlapping ingredients (like one grain, a couple proteins, and a few versatile vegetables). Then prep components in batches—cook a pot of rice or quinoa, roast a tray of vegetables, and portion proteins—so assembling meals during the week is fast.
This method keeps meal prep manageable because you’re repeating ingredients and techniques. It also makes it easier to store and portion meals consistently, which is helpful if you’re packing lunches, tracking servings, or trying to avoid last-minute takeout.
For a deeper breakdown and practical examples, visit the full guide to the 3-3-3 meal prep rule.
Most cooked meals stay at their best for about 3–4 days when refrigerated in airtight containers. If you’re prepping for longer, freeze extra portions and thaw as needed.
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