Cook once, freeze in portions, eat for weeks

What to buy first

A half sheet pan and a rice cooker. The sheet pan roasts two pounds of chicken thighs and a tray of vegetables in one oven cycle with nothing to watch; the rice cooker cooks the week's carbohydrate and holds it warm until you portion. Between them they cover the Sunday that feeds Monday to Friday, and they cost less together than the slow cooker most people buy first and use twice. Add the slow cooker or the multicooker when the schedule tells you it needs a pot of chili on a Tuesday night; add the vacuum sealer when you start cooking more than a week at a time.

The ranked lists: rice cookers, pans, slow cookers, vacuum sealers and freezer containers.

How the category divides

• The cookers — rice cookers (micom models with a keep-warm you can sleep on), slow cookers (7-quart pots with locking lids), and the multicooker that pressure-cooks, slow-cooks and sautés in one pot. The argument between the last two is on slow cooker vs Instant Pot; between the first and the last, rice cooker vs Instant Pot.
• The pans — cast iron for searing, stainless for browning without a coating, enameled cast iron for anything acidic, aluminum sheet pans for volume.
• The freezer side — silicone trays that freeze portions as blocks, reusable silicone bags, latching glass rated for the freezer, and vacuum sealers for bulk protein. Vacuum sealer vs freezer bags does the cost-per-meal math.

What decides price

Batch capacity and hands-off features, in that order. A 5.5-cup rice cooker with a keep-warm and a delay timer is the floor for a week's rice; the 10-cup version is the same machine bigger. A slow cooker's price tracks its capacity and whether it has a probe or a locking lid. A vacuum sealer's price tracks the pump, the moist mode and the seal count it is rated for. For pans, it tracks the material — cast iron is the cheapest per pound of anything here and the heaviest; tri-ply stainless made in the US costs the most. Prices are Amazon's and change daily; the button on every pick checks today's.

The mistake buyers make

Freezing a hot batch in one big container. It freezes from the outside in over a day or more, the center sits in the danger zone for hours, and the block that results takes a day to thaw and reheats unevenly. The USDA's guidance is to divide large amounts into shallow containers so they cool quickly; a silicone portion tray does that automatically, and the workflow — cool, portion, freeze as blocks, bag the blocks, label — is on how to freeze meal prep without freezer burn. The FDA's freezer numbers by food are on how long meal prep lasts in the freezer.

The second mistake is reheating from frozen in a rush. A block reheated on high in a microwave is scorched at the edge and cold in the middle, and the USDA's 165°F is measured at the center. The method by container type is on how to reheat meal prep.

The two things everyone batch-cooks

Rice and chicken. Both have a page here because both have a specific failure mode: rice that goes hard or, worse, sits warm for hours, and chicken that dries out by Thursday. The rice method — including the cooling rule and why leftover rice is a food-safety question, not just a texture one — is on how to meal prep rice; the chicken method by cooker is on how to bulk cook chicken breast. For the whole schedule that these plug into, start at how to meal prep for beginners.