A hundred dollars does not stretch far at the grocery store anymore. At Costco, with a plan, it still buys a full week of high-protein food.
One cart. Five days of dinners, plus a few lunches. Enough protein to keep you full without a single takeout order.
This costco meal prep haul is built on one rule: spend most of the budget on protein, keep the carbs and vegetables cheap, and waste nothing. Every price below is an estimate. Costco pricing shifts by region, by season, and by whatever the warehouse decides that month, so read the numbers as a realistic example rather than a receipt you can take to the register.
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The $100 Costco cart
Here is the cart, itemized. A few things (rice, oil, a bag of onions) last well beyond one week, so the true cost of a single week of prep is lower than the total suggests. I have flagged those below the table.
| Item | Approx price | What it makes |
|---|---|---|
| Boneless skinless chicken thighs (~6 lb) | $16 | 4 dinners: baked, shredded, or diced for bowls |
| 80/20 ground beef (~4 lb) | $18 | Taco bowls, meatballs, a pot of chili |
| Rotisserie chicken (1) | $5 | Lunches, salads, quick tacos |
| Large eggs (24) | $6 | Breakfast, egg bites, fried rice |
| Greek yogurt (~48 oz tub) | $6 | Breakfast, sauces, snacks |
| Canned tuna (multipack) | $10 | Lunches, a fast protein bump |
| Rice, white or brown (large bag) | $8 | Base for every bowl (lasts weeks) |
| Frozen mixed vegetables (large bag) | $9 | Stir fry, quick sides |
| Frozen broccoli (large bag) | $7 | Roasting and steaming |
| Onions (3 lb bag) | $4 | Aromatics for nearly everything |
| Bananas (bunch) | $2 | Snacks and breakfast |
That lands near $91. Add tax and a small buffer and you are at roughly $100. The rice and the oil in your pantry carry over for weeks, so week two off the same staples runs closer to $80.
Notice what is missing. No pre-cut fruit trays. No fancy sauces. No 3 lb bag of spring mix that turns to slime by Thursday. The budget goes where the protein is.
How this Costco meal prep haul becomes five days of food
Buying the food is the easy part. The plan is what keeps it from rotting in the fridge. Here is one way to turn the cart into a week, cooked in a single two-hour session on Sunday.
- Rice first. Start a big pot or the rice cooker. Make enough for the week, around 8 to 10 cups cooked.
- Sheet-pan the thighs. Season half the chicken thighs, roast at 425F until 165F inside, about 25 minutes. Dice for bowls.
- Brown the beef. Cook the ground beef with onion and taco seasoning. Split it: half for taco bowls now, half frozen flat for later.
- Roast the broccoli. Toss frozen broccoli in oil and roast on a second sheet pan while the chicken finishes.
- Assemble. Build containers: rice, protein, vegetable. Aim for a palm-sized portion of protein in each.
- Leave the flex items raw. The rotisserie chicken, eggs, tuna, and yogurt cover lunches and breakfast without any assembly.
Count it up. Four thigh-and-rice dinners, two to three taco bowls, plus rotisserie chicken and tuna for lunches and eggs for breakfast. That is comfortably 12 to 15 portions from one cart, which covers one person for a week with leftovers, or two people for most of it.
For a deeper walkthrough of the batch-cooking rhythm, see my high-protein meal prep guide. If you leaned harder on that rotisserie bird, the Costco rotisserie chicken ideas post has a week of uses for one $5 chicken.
Protein per dollar highlights
Not every protein gives you the same return. These are rough estimates using typical package sizes and standard protein values, but they show where the budget works hardest.
| Protein | Approx protein for the price | Rough grams per dollar |
|---|---|---|
| Eggs (24, $6) | ~145 g | ~24 g |
| Chicken thighs (6 lb, $16) | ~380 g cooked | ~24 g |
| Greek yogurt (48 oz, $6) | ~135 g | ~22 g |
| Canned tuna (multipack, $10) | ~200 g | ~20 g |
| Ground beef 80/20 (4 lb, $18) | ~300 g cooked | ~17 g |
Eggs and chicken thighs are the workhorses. Ground beef costs more per gram, but it carries flavor and fat that keep meals satisfying, so it earns its place even if it is not the cheapest gram of protein in the cart. Want to push the numbers further? My budget meal prep breakdown goes deeper on stretching each dollar.
What to skip at Costco
This is where most people blow the budget and then throw food away. The trap at a warehouse store is buying perishable volume you cannot finish before it turns.
- Giant bags of salad greens. A 3 lb clamshell of spring mix wilts long before one household eats it. Buy greens weekly at a regular store.
- Fresh berries in bulk unless you plan to freeze half the day you get home.
- Bakery trays and muffins. Cheap per unit, but they are carbs you did not plan for and they push out the protein.
- Pre-cut fruit and veggie trays. You pay a steep markup for the knife work and they spoil fast.
- A second protein you have no plan for. If you cannot name the meal, leave it in the case.
The rule that trips people up: cheaper per ounce is not cheaper if it lands in the trash. Only the food you actually eat counts toward cost per meal.
Storing and freezing the bulk buys
Bulk only pays off if you break it down the day you get home. Ten minutes of packaging saves half the haul from spoiling.
- Ground beef and chicken: split into meal-sized portions, press flat in freezer bags, and freeze what you will not cook in three days. Flat bags thaw fast and stack.
- Cooked rice: keeps four to five days in the fridge, or freeze in portions for up to three months.
- Rotisserie chicken: strip the meat within a day, store in an airtight container, use within four days or freeze shredded.
- Eggs and yogurt: fridge only, and both easily last the week.
- Frozen vegetables: already sorted for you. Reseal the bag tight to avoid freezer burn.
Label freezer bags with the date. Cooked proteins are best used within about three months for texture, even though they stay safe longer when kept frozen solid.
Frequently asked questions
Is $100 really enough for a week of Costco meal prep?
For one person, yes, with leftovers. For two, it covers most of the week, especially since staples like rice and oil carry into the following week. The number depends heavily on your region and current prices, so treat it as a realistic target rather than a guarantee.
Do I need a Costco membership to make this work?
You do need a membership to shop there. If you do not have one, most of this cart translates to any warehouse store or even a regular supermarket buying slightly smaller quantities. The strategy matters more than the store.
How do I keep bulk meat from going to waste?
Portion and freeze it the day you buy it. Press ground meat flat in freezer bags and separate chicken into meal-sized amounts. Cook what you will eat in three days and freeze the rest right away.
What is the single best value protein at Costco?
Eggs and boneless chicken thighs tend to give the most protein per dollar, roughly 24 grams per dollar by these estimates. The $5 rotisserie chicken is a close runner-up because it needs zero cooking.
Related reading
- Grocery guides for store-by-store shopping
- High-protein meal prep fundamentals
- Costco rotisserie chicken ideas
- Budget meal prep tactics
Written by Maya Carter, meal prep writer and home cook at BeefSteakVeg.
Maya Carter | Editorial Policy
BeefSteakVeg shares general food and meal prep information only. This is not medical or nutritional advice.
