9 common meal prep mistakes (and how to avoid them)
Updated November 5, 2026 · 5 min read

A first meal prep often comes with a hiccup: a dish nobody wants by Wednesday, a session that runs an hour over, a salad that turned to mush. None of it means meal prep isn't for you. Most problems come from the same handful of mistakes, and each one has a simple fix. Here are the ones cooks and dietitians mention most often.
New to meal prep? Start with how to start meal prepping: 8 simple tips and what you need.
1. Starting too big
The mistake: planning seven days, three meals a day and a dozen recipes for your very first session. It takes all day, the fridge overflows, and half of it is past its best before you get to it.
The fix: start with three days and two or three dishes, or a single meal you struggle with, like weekday lunches. Once that feels easy, add days. A small session you repeat beats a giant one you never do again.
2. Cooking a single giant recipe
The mistake: a huge pot of chili for the whole week. It's efficient on Sunday and very hard to face by Thursday.
The fix: make two or three different dishes, or a few bases you combine differently: the same roasted vegetables in a grain bowl one day and a wrap the next. If you repeat dishes, eating each one twice in a week is plenty.
3. Overcomplicating it from the start
The mistake: choosing new, elaborate recipes for your first session. Everything takes longer than the recipe says, and a frustrating afternoon is a good reason never to try again.
The fix: keep it simple with recipes you already know: one-pot dishes, sheet pan meals, a pot of grains. Try one new recipe at a time once the routine is in place.
4. Not planning your quantities
The mistake: cooking "a lot" without counting. Too much ends up in the trash, and too little leaves you ordering takeout on Thursday.
The fix: count the meals you actually need, for how many people, and leave out the evenings you're eating out or with friends. Size the recipes to that number, not to what fits in the pot.
5. Choosing food that doesn't keep well
The mistake: pre-dressed salads, fries, crispy chicken, sliced avocado. After a day or two in the fridge they're soggy, limp or brown.
The fix: pick dishes that hold up or even improve with time, like stews, curries, chilis, soups, grains and roasted vegetables. Keep dressings, sauces and crunchy toppings in separate containers, and add them when you eat.
6. Forgetting about flavor and seasoning
The mistake: food that tasted great on Sunday tastes flat on Wednesday. Cold storage and reheating dull flavors.
The fix: season well while cooking, and keep something fresh for serving: a squeeze of lemon, a handful of herbs, a spoonful of yogurt, some hot sauce. Thirty seconds of finishing wakes up any reheated dish.
7. Keeping food too long
The mistake: eating day-six leftovers from the fridge because they "look fine."
The fix: most cooked food keeps 3 to 4 days in the fridge. Eat the most fragile dishes (fish, rice, anything creamy) first, freeze the portions meant for later in the week, and move them to the fridge the night before. Label every container with the dish and the date, because you won't remember on Friday.
8. Using the wrong containers
The mistake: lids that leak in your bag, plastic that stains orange, boxes that don't fit in the fridge or can't go in the microwave.
The fix: you can start with what you have, like jars, takeout containers or a bowl with a plate on top. Once you know you'll keep going, get a set of airtight, stackable glass containers in two or three sizes. Our guide on how to start meal prepping lists what's worth buying, and when.
9. Giving up after one imperfect week
The mistake: deciding meal prep "isn't for you" because the first session ran long or one dish was a miss.
The fix: expect the first time to be a test. Note what worked and what didn't, keep the winners, swap the misses, and try again. Most people find their second session goes noticeably faster.
Skip the mistakes from the start: planning is everything
Most of these mistakes come down to planning: how much to cook, which dishes keep, what to eat first, and in what order to cook. That's the part Bocalito does for you. Tell it how many people, how many days and how much time you have, pick one of three menus, and you get dishes that share ingredients, one shopping list with the right quantities, a step-by-step session, and a day-by-day plan that eats the shortest-keeping dishes first and sends the rest to the freezer.
Want to see one first? Here's a vegetarian meal prep plan for 2, with five days of chili, curry, shepherd's pie and egg dishes from one session. Or create your own, for free.
Try it with your own meal prep plan
Tell Bocalito who's eating, how many days and how much time you have: it suggests three menus, then writes your shopping list and your cooking session.
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