Peanut Butter Overnight Oats with Oat Milk

Peanut Butter Overnight Oats with Oat Milk

With 15 grams of protein and 11 grams of fiber these peanut butter overnight oats made with oat milk are a filling way to start your morning! 

After years of adjusting the recipe, I’m officially in love with these creamy peanut butter overnight oats made with oat milk.

Despite making these oats nearly every day for the past 4 or so years, I feel like every year or so I find a small tweak that makes them even better.

In this case it’s been a three small tweaks, one of which was intentional while the other two were out of my control. 

Jar of healthy peanut butter overnight oats

Tweaks I made to make these peanut butter overnight oats even better

  • Oat milk instead of almond. As I talked about in a previous post, almond milk is placing a strain on the environment due to the amount of water needed to grow them. Now I’m hooked on it’s nutty, slightly sweet flavor – especially in overnight oats!
  • Chewier, good-quality oats. While I used to buy 10 lb bags of Quaker Oats, I started trying out different brands and realized how much better these oats could be. Keep reading for my new go-to brand!
  • Less Greek yogurt. Initially not intentional (I was just running low on yogurt), but ever since I’ve preferred my overnight oats with less yogurt as they’re now chewier and less thick.
Jar of healthy peanut butter overnight oats

What You’ll Need to Make Peanut Butter Overnight Oats

  • Rolled oats
  • Chia seeds
  • Cinnamon
  • Natural peanut butter
  • Plain Greek yogurt
  • Original oat milk (unsweetened) 

Best oats for overnight oats

As mentioned above, I could have never guessed how the brand of oats can really make a difference. 

I’ve been loving Bob’s Red Mill Organic Rolled Oats.

Not only can you buy them in bulk (hello money-saver!), but they’re also chewier and have a sweeter, oatier taste than the Quaker oats I had been buying. 

If you like a little texture to your oats, it’s definitely worth finding a brand with thicker, higher quality oats. 

Jar of healthy peanut butter overnight oats

How to adjust the consistency of your overnight oats

If you’re new to overnight oats, it can take a couple tries to get the consistency just to your liking.

This recipe makes a pretty thick jar of oats, which I love but I know may be too filling for others. 

Adjustments to try for thinner oats: 

  • Add an extra 1-3 tablespoons of milk in the morning
  • Leave out the chia seeds
  • Nix the Greek yogurt (although, the protein content will go down)
  • Use regular instead of Greek yogurt (again, the protein content will be slightly lower) 

Want these oats even thicker and more filling? Here are some adjustments to try: 

  • Use full-fat Greek yogurt
  • Use an extra tablespoon or two of Greek yogurt
  • Add an extra ½ – 1 tablespoon of peanut butter
  • Try an extra couple tablespoons of rolled oats 

Finally, while I prefer oats cold, I know some prefer them heated up. To do this, just leave out the yogurt when making them, heat them in the morning, and then stir in Greek yogurt afterwards. 

Benefits of using oat milk 

With so many types of milk and milk alternatives on the market, it can be confusing deciding what to buy.

Unfortunately the “right” answer really depends on individual nutrition needs, including allergies, intolerances, food preferences, nutrition goals (weight loss vs gain or maintenance), and — perhaps most importantly — personal preference. 

While oat milk isn’t the lowest calorie or highest protein option out there, it’s become my new go-to as I love the thicker texture and oaty, almost nutty, flavor.

It’s also better for the environment than almond (although I fully admit to still using almond milk occasionally), and the unsweetened version of oat milk (in my opinion) tastes better than any other unflavored milk alternative that I’ve tried. 

Plus, if you enjoy making alternative milks at home, oat milk is much cheaper and easier to make than a nut-based one. 

Jar of healthy peanut butter overnight oats

Best way to stir overnight oats 

If you’ve looked at any of my overnight oat recipes before, you’ll notice that I always call for mixing with a butter knife rather than a spoon. 

Another trick that I discovered simply by chance, a butter knife does a much better job at evenly mixing all the ingredients together — which is super important when using chia seeds as no one wants to bite into a big clump of them. 

More overnight oat recipes 

How to make overnight oats

Looking for more overnight recipe ideas? 

I’ve got a bunch here; however, these three are the ones I tend to make the most often: 

Peanut Butter Overnight Oats with Oat Milk

After years of adjusting the recipe, I’m officially in love with these creamy peanut butter overnight oats made with oat milk. With 15 grams of protein and 11 grams of fiber it’s a filling way to start your morning!
Prep Time5 mins
Course: Breakfast
Cuisine: American
Keyword: Healthy overnight oats, Peanut butter overnight oats
Servings: 2
Calories: 285kcal


  • 1 cup rolled oats the chewier the better
  • 2 tablespoons chia seeds
  • Dash of cinnamon
  • 2 tablespoons natural peanut butter I love using crunchy peanut butter
  • ¼ cup plain Greek yogurt I use full-fat or 2% fat*
  • 1 cup plain oat milk unsweetened (I use Planet Oat)


  • Place ½ cup oats, 1 tablespoon of chia seeds, dash of cinnamon, 1 tablespoon of peanut butter, 2 tablespoons of yogurt, and ½ cup of oat milk into each mason jar. Stir well with a butter knife to combine.
  • Place in fridge overnight, or for at least 3 hours. IN the morning, eat as-is or add extra milk, nut butter, or other toppings of choice.


*For thicker, creamier oats use ¼ cup of yogurt per jar.
Nutrition for ½ of recipe (based on 2 tablespoons of full-fat Greek yogurt): 385 calories, 17 g fat (3 g saturated), 48 g carbs, 11 g of fiber, 5 g sugar, 15 g protein

Don’t forget to Pin for later!

Peanut butter overnight oats pinterest image

Add a comment


  • Martha AvatarMartha2 years ago

    what about using steel cut oats instead of rolled oats?

    • The Healthy Toast AvatarThe Healthy Toast2 years ago

      I don’t recommend using steel cut oats as they won’t soften very much so you’ll end up with a very crunchy texture. I find regular cooking (the 5-minute ones) or quick cooking (1 minute oats) work best. If you prefer a chewier texture, Bob’s Red Mill has a super thick rolled oat that you can try.

  • About Kelli McGrane Headshot

    I’m Kelli MS, RD, and my mission is to prove that eating healthier doesn’t have to be complicated or restrictive. Follow along to learn more about food and cooking, with an emphasis on breakfast and sweet treats!

    About Kelli McGrane Headshot

    Welcome to The Healthy Toast!

    Here you’ll find realistic healthy recipes designed by a registered dietitian with your busy lifestyle in mind.

    Whether you’re a busy professional or new mom, the goal of The Healthy Toast is to provide you with the recipes and nutrition info you need to live your healthiest life, even when life gets crazy. As I’m a firm believer in a whole-foods, non-diet approach, I hope my website shows that good nutrition doesn’t have to be complicated or restrictive. 

    Nutrition Tips

    11 Healthy Postpartum Freezer Meals
    What is the MIND diet?
    MIND Diet Cookbook for Beginners
    Tips for an Organized and Functional Kitchen
    The Healthy Toast
    Data and Cookie Consent
    In order to provide a more personal user experience, we and our partners use technology such as cookies to store and/or access device information.
    By clicking “Accept” you consent to these technologies which will allow us and
    our partners
    to process non-sensitive data such as IP address, unique ID, and browsing data for the purposes of serving personalized ads and content, ad and content measurement, audience insights, and to develop and improve products.
    Your choices on this site will be applied only for this site. You can change your settings at any time, including withdrawing your consent, by going to the
    Privacy Policy
    page of this site.
    Manage Settings