Easy Banana Cinnamon Overnight Oats

This easy banana cinnamon overnight oats recipe is the perfect start to your day! It boasts 10.5 grams of protein, 9.5 grams of healthy fat and 5.5 grams of fiber too which will leave you full for hours!

If you need a fast on the go breakfast that you can just grab out of the fridge and eat either at the office or in your car, this is the perfect recipe for you!

banana cinnamon overnight oats.

Why I Love This Recipe!

Oats are my favourite breakfast to start the day. Overnight oats are the best because you can prepare it the night before, throw it in the fridge and whenever you’re running out the door just grab it!

This recipe is loaded with healthy fats and fiber which helps to keep you full for a longer time. So if you have meetings, kids to chase after, or just want to reduce your snacking, then starting your day with this recipe will help!

Every good breakfast needs to have protein, and this one gives you (at minimum 10.5 grams of protein! If you want to increase the amount of protein you can mix in protein powder too!


banana cinnamon overnight oats recipe.
  • Old fashioned oats are the only kind to use! These oats keep a semi-firm texture even after sitting in milk overnight so make sure that you check your oats bag before buying.
  • I love using skim milk for my recipes, and it’s for a simple reason, I grew up drinking it. But if you want a richer flavour you can use 2% milk as well.
  • Optional Ingredients: You really can throw anything in your pantry into this recipe to up the nutrition factor! But like I’ve said in previous overnight oat recipes, be mindful of how many ‘extras’ you’re throwing in. The calories really can add up in overnight oats.


Overnight oats can stay in your fridge for 2 days or 48 hours. Some people will say they can stay in your fridge for longer, and safety wise, yes they can. But I find that the texture and quality of taste really goes down after 2 days.

My preference is to make it the night before and have it the next day. It really tastes best this way.

Substitutions & Additions

  • Any type of milk will work for this recipe.
  • You can add in any type of nut butter that you want. But watch how much sugar is in your choice of nut butter, you want to keep added sugars to a minimum.
  • For the optional ingredients you can add them, or you can use anything in your pantry. Some other good optional ingredients include any type of crushed nuts, hemp hearts, honey, and ground flax seeds.
  • You can add protein powder if you want to increase the amount of protein in your oats! I recommend sticking with a vanilla flavoured protein powder. My favourite is Vanilla Cream Premier Protein Powder!

Health Benefits

There are SO many benefits to starting your day with overnight oats, here are just a few from the ingredients included in it.


Oats are super good for you! They’re packed with soluble fiber, especially beta-glucan, which can help lower your cholesterol. Lower cholesterol means a lower risk of heart disease. Plus, the fiber helps with digestion and keeps you feeling full longer, which is great for weight management.

Glycemic Index Score of Rolled Oats

Rolled oats have a glycemic index (GI) score of about 55. That’s on the lower side, which is awesome because it means they’re less likely to spike your blood sugar. So, they’re a solid choice if you’re watching your blood sugar levels.

All Natural Peanut Butter

All-natural peanut butter is a fantastic source of healthy fats, particularly monounsaturated fats, which are great for heart health. It’s also packed with protein, which helps keep you feeling full and supports muscle growth and repair. Plus, it has a good amount of vitamins and minerals like vitamin E, magnesium, and potassium.

Glycemic Index Score of All-Natural Peanut Butter:

All-natural peanut butter has a super low glycemic index (GI) score of around 14. That’s really low, meaning it won’t cause a big spike in your blood sugar. It’s a great option if you’re looking to keep your blood sugar stable.


Bananas are a great snack! They’re rich in potassium, which is essential for heart health and maintaining healthy blood pressure levels. Bananas also provide a quick source of energy thanks to their natural sugars and are high in vitamin C and vitamin B6, which are important for immune function and metabolism.

Glycemic Index Score of Bananas:

Bananas have a glycemic index (GI) score of around 51. This is considered low to moderate, so they provide a steady release of energy without causing a big spike in blood sugar levels. They’re a tasty and convenient option for a quick energy boost.

Recipe Nutrition Facts

  • Calories 264
  • 10.5 Grams of Protein
  • 36.5 Grams of Carbohydrates
  • 5.5 Grams of Fiber
  • 9.5 Grams of Fat
banana cinnamon overnight oats.

Banana Cinnamon Overnight Oats

Michelle Saari RD MSc
This sweet Banana Cinnamon Overnight Oats are so fast and easy to prepare and they fall into the Low Glycemic Index diet perfectly!
Prep Time 5 minutes
Total Time 5 minutes
Course Breakfast
Cuisine American
Servings 2 people
Calories 264 kcal


  • 1 Cup Old fashioned oats
  • 1 Cup Skim milk
  • 1 Tsp Cinnamon
  • 1 Medium Banana
  • 1 Tbsp Crushed Walnuts
  • 1 Tsp Flaked Coconut
  • 1 Tsp Chia Seeds
  • 1 Tbsp All Natural Peanut Butter


  • In a bowl take a ripe banana and mash it with a fork. You can leave some chunks as this will add a nice texture to the oatmeal.
  • In a mason jar or any type of glass sealed jar add oats, milk, cinnamon, crushed walnuts and chia seeds to the jar. Shake well.
  • Place in the refrigerator for at least 4-8 hours.
  • Top with flaked coconut and all natural peanut butter, serve and enjoy!


  • Any type of milk works for this recipe.
  • Any type of nut butter works for this recipe.  I prefer all natural peanut butter to reduce the amount of added sugar.
  • Chia seeds, walnuts, coconut, are all optional ingredients but they do add extra healthy fats!
  • Only use old fashioned oat for this recipe and not quick oats.  Quick oats tend to absorb liquid very fast and form a thick texture, not ideal for an overnight oat recipe.
Keyword banana, cinnamon, oats, overnight oats

Looking for more Overnight Oats Recipes? Try these ones too!

Frozen Fruit Overnight Oats

Easy Pumpkin Protein Overnight Oats

Berry Cheesecake Overnight Oats

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