Banana Peanut Butter Overnight Oats

We’re SO obsessed with this recipe that we just had to share it with you! These Banana Peanut Butter Overnight Oats are the perfect M1 or M2. They pack lots of protein, thanks to the peanut butter, chia seeds, and of course, Tone It Up peanut butter flavored protein powder, so you’ll be building lean muscle and feeling satisfied all morning. Plus, they’re super simple to meal prep and grab on the go. Oh, and they taste ahhh-maze! Can't go wrong with peanut butter!! ;)


2 servings


  • 2/3

    cup rolled oats

  • 2

    Tbsp. peanut butter

  • 4

    tsp. chia seeds

  • 2

    tsp. honey or maple syrup

  • 1

    cup unsweetened almond milk

  • 1

    scoop peanut butter flavored protein powder

  • 1

    banana, sliced


STEP 1: Combine everything in a bowl.
STEP 2: Split mixture into two mason jars. Let sit in the fridge overnight.


This delicious, simple breakfast is packed with protein and fiber!


  1. Yup! This is 100% my favorite ONO recipe so far! It get’s perfectly thick and creamy with the mashed banana and that delicious hit of PB is a WIN! LOVE LOVE!

  2. this is my absolute favourite recipe from the TIU Nutrition Plan! I almost didn’t even try it because I don’t like soggy oats but when I read the recipe I had to make it RIGHT NOW! I substituted 1/2 the amount of oats for homemade protein granola added right before eating so I get a tasty crunch ;P

  3. Great minds think alike. Def my m1 today, prepped it last night after a crazy day so I could start fresh in the am.

  4. This is super yum! I plan to share it with my partner tomorrow morning #tiuboyfriend #lookforlove #tiunutritionplan

  5. I am having the hardest time committing to the nutrition plan because my kids have food allergies – including soy and nuts- and almost every recipe calls for something I can’t risk contaminating my kitchen with, and I can’t figure out a way to substitute without compromising the #tiuapproved – ness! Any other food allergy TIU girls with tips?

    1. Hi Melody,

      We are an allergy family too! 3 of us (including me) are allergic to tree-nuts & peanuts, I am also allergic to dairy, oats, bananas,tomatoes peaches and plums and have celiac disease. One of my sons also has a bean and sesame allergy in addition to peanuts. Needless to say, it is NOT a fun household to live in foodwise! I just made this recipe with Eden Foods Brown Rice flakes, So Delicious coconut milk, Wow butter (soynut butter) but you could use Sunbutter (sunflower seed butter) , Sunwarrior classic blend vanilla protein powder (all fermented brown rice protein powder) and plan to top it tomorrow morning with strawberries! Would I love to follow the meal plan as is? Absolutely! Is i frustrating? Yes!! But some things can be modified pretty easily. I find the sources of protein to be most difficult since I am a vegetarian that does not do well with beans. My son with the sesame allergy used to be severely allergic to soy (birth to 9 years old). Now at 11, he does not test allergic anymore but does have an intolerance. We used to use Coconut aminos in place of tamari sauce for stirfrys etc. In place of nuts, we use pumpkin seeds and sunflower seeds from Gerbs Allergen Friendly Foods. You can buy them on Amazon or directly through their website. All of their products are handled in an allergen free facility. I hope this help Melody! Stay Strong!!

      1. I LOVE this comment. I never thought I’d find another person with a longer allergy list than me. I use Sunbutter in all of my ONO recipes with rice milk, and I highly recommend it. Can’t wait to also try Sunwarrior! THANK YOU!

    2. I’m allergic to nuts too, so some of these recipes are tough! I’ve used pumpkin seed butter, and soy nut butter (but you can’t do soy right?)
      I just use regular dairy instead of the nut milks, but i suppose there is rice milk too…

  6. These were so good! banana and peanut butter is one of my favorite combos and I loved how it was just ready to go in the morning! My husband loved them too! I am also looking forward to the coconut berry ones next week! #TIUteam #lookforLOVE #TIUhubby

  7. This was admittedly my very first ONO recipe, and I loved it!! The only change I will make for next time is dividing this up into 3 portions instead of 2. I don’t eat like a bird or anything, but it doesn’t usually take much to fill me up when it comes to oatmeal. So I’ll call it a win, thanks Ladies!!

  8. This was my first ever attempt at making/eating overnight oats and I am officially hooked! Soo good and super easy. I am all about quick, easy prep and this was perfect!

  9. What kind of mason jars do I need? 8oz or 4 oz? It looks delicious and I really wanna try <3 <3

  10. I made this recipe with chocolate perfect fit and added a tsp of cocoa power- so delicious!

  11. Yummy and filling. I couldn’t finish the one serving for breakfast, so I had it for a mid-afternoon snack. It powered me through the morning and early afternoon!

  12. Do you think I can warm this up in the morning? I like to enjoy warm food in the mornings instead of cold

  13. Thanks girls! Ive just made this and cant wait to try it tomorrow :) I love overnight oats x

  14. Do you mash the bananas with the oats? I just sliced the bananas and put them in the jar and they turned brown over night as I suspected :(

    1. I sliced my bananas thin and mixed them in with the oats and mine were not brown. Only the ones that were exposed to air at the top turned brownish.

    2. I prefer mashing them myself. Makes the oats creamer & you get banana in every bite!

  15. What size mason jar, I kiddy made a batch using the regular size but I’m thinking the short one would work better

  16. I have a tree nut allergy, but am able to eat peanuts/ peanut butter. Is there anything I can substitute the almond milk with??

    1. I’d love to know the answer to this! I’ve used unsweetened rice milk, which totally works, but wondering if they recommend something better. Also allergic to peanuts, but Sunflower Seed Butter is an amazing replacement!

  17. Has anyone figured out the nutritional information on this? I know I could figure it out, but thought I’d ask first!

  18. Makes your a serving full? It looks so little but there will be maybe between 400-500 kcal per serving?

  19. Question: If I don’t have perfect fit protein or am deciding to do a different type of vanilla protein, what would be the best choice similar in taste like the perfect fit?

  20. After a year and a half of being a TIU girl I have yet to try overnight oats!!! Just rediscovered this recipe after reading one of the recent posts. Just curious if this is meant to be eaten cold out of the refrigerator or warm it up? I guess maybe it depends on preference but I was wondering what you girls liked best!

    1. We love grabbing overnight oats straight out of the fridge and eating them cold! If you choose to heat it up, we recommend adding a little extra liquid when heating so that it doesn’t dry out.

  21. Overnight Oats has become one of my favourite M1 through out the week! It is so easy to prepare and mix new flavours. :)

  22. I put all of the ingredients in one serving the banana peanut butter overnight oats into my FitBit app and it says its over 500 calories. Is that right?!

  23. So good!! Made it last night and had for breakfast this morning 😋
    Do you have the nutritional info for this? Thank you!!

  24. I just made this for the morning and I’m so excited! My husband was eyeing it so might share my second serving I was going to save! 😋

  25. I could literally eat these all day… SO GOOD!!! I swapped the peanut butter for some Justin’s maple almond butter… DELISH!!!!!!

  26. What are the nutritional values of this…I halfed the recipe except for the protein powder and my lifesum app says it’s almost 400 calories! And I haven’t even added the banana yet. It’s also soo small like barely half my mason jar. What type of gluten free oats are yall using? I used the Bob’s Red Mill gluten free old fashioned rolled oats. I also used regular PB but the calories are pretty much the same.

  27. Just had this for the first time and OMG!! Seriously moorish!…Goes down a treat…so tempted to eat the other half of the mix but I won’t. Great thing is that I can make it wherever I am as long as I have 2 containers & a fridge. Need to check out the other ONO recipes. Thanks K& K…I’m hooked!

  28. I made these for Mon & Wed M1’s this week and premade a PB&J pancake for Tuesday’s M1 :)
    These PB & Banana ON oats tasted good in the bowl together—yes, I had to take a taste! Excited to try these tomorrow!

  29. Would love the nutritional info on these as well. Mine was saying almost 500calories per serving???? That seems like a lot!!

  30. I’ve been eating overnight oats for the past couple years, but never with the protein powder. Did my prep tonight (just joined last night!!) and can’t wait to dig in tomorrow am! I can’t eat chia seeds because I have diverticulosis/itis and the seeds cause serious GI symptoms, so I subbed hemp seeds, I assume that’s an ok sub? I also have flax seeds I thought I could sub on some of the other recipes, but would love some input on whether hemp and flax seeds are an ok sub for chia. Thanks in advance! I’m so excited to get started with TIU!

    1. Hi!
      Chia seeds contain heart-healthy omega-3 fatty acids, so both hemp seeds and flax seeds are great alternatives, as they also contain omega-3! If you use flax, you can also try grounding them into a powder so that it blends easier.

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