what can you put in a food flask

Treat yourself to a tasty lunch every day—whether you’re at home, working, or want to encourage your children to eat healthier. Say goodbye to boring sandwiches or soggy salads with a food flask that can store soups, cereal, stews, and more.

But what can you put in a food flask? This is a crucial question to be concerned about. Let’s explore some of our best dishes to add to a food flask that won’t require a lot of preparation every night.

8 Things to Put in a Food Flask

When preparing lunch, you might prefer a hot meal over a cold one. Keeping food cold isn’t an issue, but keeping cravings satisfied without access to a microwave to heat up food might be challenging. Thanks to food flasks, however, you can enjoy warm food for lunch. Although, you need to choose products with excellent vacuum insulation.

Below are some exciting lunch ideas as well as practical tips to try every day.

Corn on the Cob

This nutritious snack is a great addition to various meals, and you will love its sweetness. Boil corn on the cob in water for three to five minutes and seal it in the Thermos.


Pasta makes a great meal for lunch or dinner, and you can incorporate some healthy greens into your recipes, too. Pack the pasta with some sauce in the morning. Simply add the dish to your flask, and you and your child are all set for a savoury lunch. Just don’t forget to take your favourite cheese in another dish to add to the flask when it’s lunchtime.

Oat and Quinoa Cereal

Slow-cook oats before placing them in the Thermos for a nutritious breakfast. Then, cover with boiling water. Mix in dried or fresh fruit, and the Thermos will continue to keep the food warm. This is a great idea for school lunch boxes and works as a delicious snack for kids, too.


This is one of the best things to put in a Thermos because a curry’s flavour intensifies as it sits. Using an easy recipe, make curry at home the night before and store it straight away. The following day, microwave the curry, so it’s warm for the entire day and put it into your flask. If you want to, you can even add in your favourite rice to mix up the flavours.


You can store various soups in a food flask. From vegetable to tomato soup, the recipe options really are endless. Just make sure to heat the soup to a higher temperature than usual before you pack it in your food flask. This is key to keeping the soup piping hot in your flask.

Scrambled Eggs

scrambled eggs

What’s great about scrambled eggs is that it is always easy to make, no matter which recipe you use. Prepare the dish the night before you need them and reheat them the following day (making sure to add some water so they don’t dry out). Add to the Thermos with a little tomato sauce if you wish. You can even accompany it with some bacon.

Alternatively, take some bread separately in a lunch box to enjoy a sandwich for lunch.

Macaroni and Cheese

Begin by rinsing the macaroni with hot water. Then, place it in a Thermos and close the lid tightly. Allow it to sit for 30 minutes more before draining out the water and adding in your cheese mixture. This is one of our favourite recipes for preparing at work because you can pack everything you need and just have to add boiling water.


We love that you can have hot food whenever you feel like it with a thermos. Following your favourite recipe, create your stew the night before or the morning of. If you’re cooking it the night before, make the food hot by adding the ingredients to a pan, turning up the heat, and mixing the food to keep it warm. Then, take the delicious food and put it in a Thermos.

Use it for a meal at work. Either way, it’s a great way to get more nutrients and fill an empty stomach after a hard day at work.

Toasted Sandwiches

Not every meal has to be complicated when thinking of something to keep in your Thermos. Prepare a hearty lunch with a sandwich recipe and use meat, cheese, hummus, or vegetables as the filling. Place the sandwich in a toaster to make it crispy and add a delicious twist to a traditional school dinner. Then, place it in a Thermos. Children will love having a warm, hearty meal for their school lunch.

Using Your Thermos as a Food Jar

Did you know that you can use your Thermos for your hot or cold foods? It doesn’t just have to be piping hot food you’ve made at home. Explore new recipes and pack some healthy snacks as a side dish. A stainless steel Thermos will keep your foods cool for long periods and still retain a tasty crunch.


This is a healthy dish to pack for work or school lunches because you can add lots of vegetables and leafy greens while mixing in some toppings. But if you want to add a sauce, store it in another bowl until it’s ready for use. This will prevent the items in the Thermos from becoming soggy.

Yoghurt With Fruit

Kids’ lunches don’t have to be boring. Pack a healthy side snack with their favourite flavour of yoghurt and mix in some fruit. Place the lid on, and it’ll keep cool for the entire school day. If you’re a parent, it can be difficult to come up with healthy ideas to increase your child’s vitamin intake. Fortunately, mixing with yoghurt is a great way to do this.

What Drinks Can You Place in a Food Flask?

It’s not just hot food that you can store in a Thermos flask; drinks are a great addition, too.

For a pick-me-up, ensure that you keep your Thermos filled with your favourite hot drink like hot chocolate, coffee, tea and other beverage products. Use your flask the right way to keep drinks hot or cold for longer.

man looking at steel food container

Enjoy Healthy Food Every Day

Reduce the stress of preparing work or school lunches with food flasks, which are a great alternative to food jars. They’re portable and keep food hot for up to 5 hours.

Simply place your chosen foods into the flask, add the lid and leave them in the work kitchen or your kid’s backpack until it’s lunchtime. This is by no means an exhaustive list of foods you can put in your flask, so be creative and enjoy your favourite meals all day, every day.

Do you have any more tips or ideas you’d love to share? Let us know in the comments.

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