Lemon Overnight Oats (Easy + Healthy)

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These lemon overnight oats are the perfect way to start your day with a bit of a zing and a pep in your step, and the best part is there’s no cooking involved!

I’ve tried so many different overnight oats flavors, but one of my favorite is all about the lemon.

It adds an extra zest to your typically creamy overnight oats, and the flavor is addictive.

In this lemon overnight oats recipe, we’re going to dig deep into the best ways to make overnight oats, when you should add the lemon and how, and other suggestions for customizing your overnight oats to suit your taste.

But first, let’s get started with a question I get aaalllllllllllll the time.

lemon overnight oats with lemon slices
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What the Heck are Overnight Oats?

People who haven’t heard of overnight oats are often confused as to the difference between these types of oats and the types of oats you eat in the morning after microwaving or putting on the stove.

With overnight oats, you’re using the same oat base, but there is no heat involved, and the fridge does all of the work.

Overnight, the oats absorb the water or liquid you’ve added, and in the morning you get a creamy, cold breakfast that many find preferable to regular old oatmeal.

If you really want to eat overnight oats warm, you can heat them up, but they’re designed to be eaten cold straight out of the fridge.

lemon overnight oats with spoon and chia seeds
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For these overnight oats with lemons, you’re going to want to gather up the following ingredients:

ingredients for lemon overnight oats
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  • water – easy! Straight from the tap!
  • greek yogurt – I use full fat greek yogurt like this in these recipes, but you can use your own favorite kind
  • lemon – for getting the fresh lemon juice into our oats
  • rolled oats – the star of the show! Use rolled or steel cut like these, not instant oats as it can be gummy.
  • chia seeds – for some extra protein, omega 3, and color. I prefer this brand.


The fantastic thing about overnight oats is that they are so, so easy to customize.

Seriously, you can switch around so many of the ingredients besides the actual oats to fit your lifestyle.

Some examples would be switching out the water for milk if you want an even creamier and tangy flavor.

You could leave out the yogurt altogether and just use an extra 1/4 cup of water.

You could use your own favorite type of yogurt instead of Greek yogurt.

You could leave out the honey or add more, or use vanilla extract instead of honey as a sweetener.

The basic thing to remember is that you want to keep a 1:1 ratio between the oats and the liquid or runny ingredients, so you don’t want to use 1/2 cup of oats and just 1/4 cup of water, but everything else is fair game.

Obviously making changes will impact the final taste and consistency, but that’s part of the fun in determining how you like your overnight oats because we don’t all enjoy the same type of textures and flavors.

lemon overnight oats with spoon
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Can I Use Lemon Juice from a Bottle?

If you don’t have fresh lemons, you can absolutely use lemon juice from a bottle like this.

You’ll want about 3 tablespoons of lemon juice instead of the juice from one lemon.

lemon overnight oats with lemon slices
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How to Make Lemon Overnight Oats

The steps to making these oats are simple, which make it a great choice for busy people who want something healthy without taking too long.

Mix the water, yogurt, and honey together in the container you’re using for the oats.

Cut a lemon in half and squeeze the juice from both sides into the mixture and combine.

squeezing lemon into overnight oats
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Add in the oats and chia seeds.

oatmeal chia seeds and yogurt in a bowl
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lemon overnight oats before refrigerating
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Refrigerate for 8+ hours, preferably overnight.


lemon slices in lemon overnight oats
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Storage Tips

Storing lemon overnight oats in a jar is super simple – it should be left in the fridge.

I’ve enjoyed overnight oats for up to 3 days after making, though they are best eaten the first day after making.

Make sure you have either a lid on the container they are in or saran wrap for food safety.

lemon overnight oats
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What to Serve with Lemon Overnight Oats

Overnight oats are prepared in a single serving in this recipe, though you can double or triple it if you’re trying to feed the whole family.

The oats themselves are the main event for breakfast – they’re super filling, so you shouldn’t need to add more with them.

If you do want some extra substance, I like to pair them with a fruit like a grapefruit for some color and more refreshing taste, or go the opposite and have a warm pastry or toast with the cold overnight oats for the contrasting experiences.

You can also make other types of overnight oats, such as:

and so many more options – get creative!

lemon overnight oats with lemons in background
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Yield: 1 serving

Lemon Overnight Oats

lemon slices in lemon overnight oats

These lemon overnight oats are tangy, refreshing, and easy to make with just 5 minutes of prep and the rest done for you by the fridge!

Prep Time 5 minutes
Additional Time 8 hours
Total Time 8 hours 5 minutes


    1. Mix the water, yogurt, and honey together in the container you're using for the oats.
    2. Cut a lemon in half and squeeze the juice from both sides into the mixture and combine.
    3. Add in the oats and chia seeds.
    4. Refrigerate for 8+ hours, preferably overnight.
    5. Enjoy!


1. If you're lactose intolerant, you can leave out the yogurt altogether or use a dairy free kind.

2. If you want an even creamier version, use milk instead of water.

3. These are best enjoyed after sitting in the fridge overnight for the best flavors and consistency, so make before you head to bed and they'll be perfectly done in the morning.

4. If you only have lemon juice, use 3 tablespoons from the bottle instead of the juice of 1 fresh lemon.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 329Total Fat: 5gSaturated Fat: 1gTrans Fat: 0gUnsaturated Fat: 3gCholesterol: 6mgSodium: 49mgCarbohydrates: 58gFiber: 8gSugar: 23gProtein: 19g

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