Why You Should Adopt the Philosophy of Cook Once, Eat Twice

Since day one of living together, Peter and I made a conscious decision to do away with the ‘work lunch faff’ and overpriced sarnies from nearby shops. Instead, we decided to cook once and eat twice.

The philosophy is simple and can apply to one person, a couple or a whole family.

The idea is that everyday, you choose a recipe which can serve both dinner and your next day lunch. The key thing is to make sure that you don’t eat all of the food for dinner and that’s why it’s important to portion out all of your servings when you dish up in the evening, reducing the risk of gobbling it all up!


Peter and I try to stick to this philosophy day in, day out. It gets a little trickier when we go out for dinner, but if we do, we try to either take something out of the freezer for the next day lunch or will buy something wholesome for lunch, such as a bag of ready to go lentils and a cooked chicken breast.

3 reasons why Cook Once, Eat Twice is a worthwhile food philosophy to follow:

1) Saves You Time

On average, we spend approximately 40 minutes every evening making dinner in the kitchen. By following this philosophy, you’ll no longer have to return to the kitchen after dinner to make separate packed lunches. Instead, your lunch is cooling down in a dish, ready to be popped into the fridge for tomorrow. By choosing to cook once and eat twice, you’re keeping your kitchen-time to a minimum. Personally, I find that this philosophy also saves me time in the evening through not having to  decide what I want to eat for lunch the next day – it takes away a decision that has to be made, in an already decision filled day.

2) Saves You Money

If you’re a serial lunch-deal buyer, you’ll no doubt be spending around £3 everyday on a sarnie and associated snacks. However, if you swapped that for bulk cooking in the evenings, you could be preparing yourself a super simple, delicious and nutritious lunch for at least half that amount. Choosing to cook meals such as stews, chillies and curries, whether they’re vegetarian or not, you’ll no doubt save money as these are super cheap meals to prepare once you have the essential store cupboard ingredients in your pantry.

3) Helps the Planet by Reducing Waste

By cooking the correct portions to serve both dinner and lunch, you’ll reduce the chances of having large amounts of waste leftovers destined for the bin. You’ll be able to box up any leftover dinner either as a larger lunch or as an additional serving to put into the freezer for a rainy day.

Quick Tips on How to Cook Once, Eat Twice

  • Choose simple and easy to transport meals, such as Curries and Stews etc.
  • Buy a good stock of pyrex dishes which you can put in the fridge, freezer and transport to work;
  • Challenge yourself to not buying ‘lunch essentials’ (i.e. bread, ham, cheese and crisps) for a month to help you transition to the cook once, eat twice philosophy.


Do you already cook this way or have you been inspired to convert to the Cook Once, Eat Twice philosophy? Let me know below!