High Protein Peanut Butter Banana Overnight Oats is super quick and easy to make, hearty, and healthy. A very desserty breakfast or snack!
Here’s another one!
I’ve only posted a couple of high protein overnight oatmeal recipes so far, but both of those - Cranberry Orange High Protein Overnight Oats and High Protein Overnight Oats - are the kind of thing I could eat every morning, without fail.
This creamy peanut butter banana overnight oats recipe is a delicious breakfast - The peanut butter and banana combo IS one of my favourite flavor combinations - but it’s definitely richer than I could eat on a daily basis.
That said - like all of my protein overnight oats versions - it’s the perfect make-ahead breakfast!
The next morning, I just grab one, give it a quick stir, and go! You don’t even need to use any extra dishes, just eat it out of its storage container.
It’s easy meal prep that’s particularly great for busy mornings. It’s a great way to be able to *quickly* enjoy a serving of oatmeal, even on hot summer days.
The only difference is that with this healthy peanut butter banana oatmeal has much higher protein content.
I’ve gotta say, overnight oatmeal has definitely been a game changer when it comes to me getting my protein intake up... and this one is basically a DESSERT!
Anyway, let’s look at what you need for your own batch of peanut butter and banana overnight oats!

Ingredients
You’ll only need a few simple ingredients to make high protein peanut butter & banana overnight oats ... and I have a few short ingredient notes for you:
Rolled Oats
This recipe uses Rolled Oats, which can also be labeled as old fashioned oats, or even just old-fashioned oats
Two things to note here:
1. Be sure to use certified gluten-free oats if you are avoiding gluten for any reason.
Oats themselves are gluten free, but they’re also HIGHLY likely to be cross-contaminated with wheat, if it’s not certified that they’re NOT.
2. Steel-cut oats, and any form of quick oats - AKA or instant oats - aren’t going to work the same way in this recipe, as they all behave differently.
Because they’re processed and cut differently, they’ll take up liquid differently, for the same measure of oats. Steel cut oats will have a more tough texture, and quick cooking oats will make a mushy overnight oats.
For best results, stick to Gluten Free Rolled Oats. It really is the best type of oats for this making overnight oatmeal!
Unsweetened Almond Milk
Unsweetened Almond Milk has been my milk of choice for years now. It was a great dairy-free option when I could no longer handle cow’s milk, and it’s a great option when trying to keep low carb.
When it comes down to it, though... depending on your macros, you can use pretty much any kind of milk in this recipe.
As far as dairy free milk goes, Oat milk, Cashew Milk, Flax Milk, Macadamia Milk and Coconut Milk are all good options.
Sometimes you can even find a soy milk with added protein!
Almond is the most neutral tasting option, though - so just know that the other plant milk varieties may change the overall flavour of your overnight oats a bit - it’ll really depend on the flavour of protein powder you’re using.
Anyway, beyond the non dairy milk options, regular milk works, too - just a bit higher carb.
You can use whatever you like, but I’d recommend at least 2% fat, for texture reasons. Whole milk is great... I find 1% / skim milk to be too watery, IMHO.
Vanilla Flavored Protein Powder
This recipe uses Vanilla Flavored Whey Protein Powder.
We tend to make this using Revolution Nutrition’s High Whey line of whey protein powder.
Use whatever type of protein powder that you like to drink, and fits your macros.
If you use a plant-based protein powder / vegan protein powder, this can be a vegetarian or vegan overnight oats recipe - you’ll just want to be sure you’re using a plant-based collagen powder. (Or you can skip it entirely.)
For that matter, don’t feel you HAVE to use vanilla protein powder. A chocolate protein powder would also be a great option - chocolate banana and peanut butter is a fantastic flavour combination!.
Creamy Peanut Butter
A couple quick notes here.
For one, you COULD use crunchy peanut butter, but you’d want to use a little bit extra.
Secondly, if peanuts are not an option, swap in almond butter, cashew butter, or sunflower seed butter.
Ripe Banana
You’ll want to use an overripe banana, for a few reasons - more ripe bananas bring extra flavor, a bit more natural sweetness, and mash down to a better texture.
Chia Seeds
Each serving of this high protein overnight oats uses a tablespoon of chia seeds, which serves a few purposes.
First of all, it absorbs some of the milk and gives the overnight oats a nicer texture, IMHO. More creamy than if you don’t use them.
They also add a little more protein, some heart-healthy fatty acids, and fiber, well as some minerals and antioxidants. A great ingredient, overall!
Collagen Peptides
This one is optional, but I like to add a scoop of Unflavored Collagen Peptides Powder , as an easy way to give my overnight oats a boost of extra protein.
If you’re not particularly concerned about adding additional protein and don’t have any collagen on hand, you can feel free to skip it.
Optional Garnishes
This Peanut Butter & Banana Overnight Oats recipe is tasty as is, but it’s always fun to garnish it!
Just before serving, top it with a drizzle of peanut butter, dollop of whipped cream, sliced bananas, chopped peanuts, etc!

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How to Make Peanut Butter Banana Overnight Oats
The full recipe - with complete ingredient list - is in the printable recipe card at the end of this post, here is a pictorial walk through with step-by-step instructions:
For each mason jar (or other airtight container):
Measure banana, and peanut butter into a medium bowl, and mash together until smooth.
Add protein powder, chia seeds, collagen, and salt, stir with a fork until well mixed.

Cover the bowl, or divide mixture into 2 pint jars, cover and chill overnight.

The next morning, give each jar a good stir, and add an extra splash of milk if you’d like a thinner, more creamy texture.

Make Ahead
You can make several of these at once - for best results, eat within 3-4 days.

More Protein Powder Breakfast Recipes!
Looking for more protein packed breakfast recipes? I’ve got you covered! (And hey, many are low carb, also!)
Apple Cinnamon Protein Pancakes
Camping Pancake Mix
Cranberry Orange High Protein Overnight Oats
Blueberry Protein Pancakes
High Protein Banana Nut Bread
High Protein Overnight Oats
Pumpkin Protein Pancakes
Raspberry Protein Pancakes
Strawberry Protein Pancakes

High Protein Peanut Butter Banana Overnight Oats
Equipment
- 2 500 ml Mason Jars A Pint Jar
Ingredients
- 1 Ripe Banana
- ¼ cup Creamy Peanut Butter
- 2 scoop Protein Powder We use Revolution Nutrition's High Whey
- 2 tablespoon Chia Seeds
- 2 tablespoon Collagen Peptides optional
- Pinch Salt
- 1 cup Rolled Oats
- 1 cup Unsweetened Almond Milk Or whatever milk you like to drink.
- Optional garnishes: Whipped cream sliced bananas, melted peanut butter, chopped peanuts, etc
Instructions
For each mason jar:
- Measure banana, and peanut butter into a medium bowl, and mash together until smooth.
- Add protein powder, chia seeds, collagen, and salt, stir with a fork until well mixed.
- Add rolled oats and almond milk to the bowl, mix to combine. Divide mixture into 2 pint jars, cover and chill overnight.
- The next morning, give each jar a good stir, garnish as desired, and serve.
Notes
Nutrition

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Porters
This peanut butter and banana overnight oats recipe is super indulgent - basically a dessert! Hope you love it as much as we do!