These peanut butter banana overnight oats take a classic flavor combo and turn it into a filling, easy breakfast that you can grab-and-go on even your busiest mornings. It is one of our favorite prep-ahead breakfasts! Just mix everything together on the weekend or the night before, pop it in the fridge, and have a perfect ready-to-eat breakfast waiting for you in the morning. Peanut butter banana overnight oats are perfect for those busy mornings when you need something quick and satisfying to grab on your way out the door.

Tight view of peanut butter banana breakfast oats in two glass jars.

What ingredients do I need to make peanut butter banana overnight oats with yogurt?

Unsweetened milk. Cow’s milk, almond milk, oat milk, soy milk—whatever milk you have in your fridge will work!
Rolled oats. If you need this easy breakfast recipe to be gluten-free, make sure you are using oats that are certified gluten-free.
Plain Greek yogurt
Chia seeds or ground flax meal
Vanilla extract
Natural peanut butter
Mashed banana
Salt
Honey or maple syrup, optional. If you don’t like your breakfast particularly sweet, the natural sweetness of the banana may be enough for you. Sweeten to taste.

Protip: Boost the flavor!

If you want to add even more peanut butter banana flavor, top with sliced banana, more peanut butter, and a sprinkle of cinnamon just before eating.

Two jars of overnight oats topped with peanut butter and banana slices sprinkled with cinnamon stand on a honeycomb pattern kitchen linen.

Can I use steel-cut oats instead?

We recommend you use rolled oats, not steel-cut oats. While you can certainly make overnight oats with steel-cut oats, those oats are minimally processed and as a result, make a chewier oatmeal.

Rolled oats are our pick for overnight oats as they give overnight oats a creamy, pudding-like texture that works well with the other ingredients.

How do I make peanut butter banana overnight oats?

It’s so easy! You can prep a batch in minutes.

Collage of three simple steps to make peanut butter banana overnight oats. A text overlay reads, "How to Make Peanut Butter Banana Overnight Oats."

Add ingredients to a mixing bowl and stir until combined. Feel free to add more or less of ingredients like honey and salt to taste.
Pour oat mixture into 1 or 2 jars with lids. Be sure the lids are firmly closed. We recommend using reusable lids, rather than the metal ones that come with some jars.
Chill in the fridge for 4 hours or overnight. Serve garnished with additional peanut butter, banana slices, and a pinch of cinnamon if desired. These overnight oats with peanut butter and banana will last in the refrigerator for about 3 days.

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Do I need special jars to make overnight oats?

The good news is, you probably already have containers that will work for overnight oats. This recipe will fill a pint/half-liter size mason jar. However, you can also divide it up into 2 smaller servings, in which case you’ll need small (4-8 oz) plastic or glass jars with lids.

You can also check out these options:

Ball Wide Mouth Pint (fits full batch): These classic jars are affordable, readily available, and of great quality. You’ll love the wide mouth opening for easily adding the oat mixture. They come with a metal lid, but we suggest getting the Ball plastic caps, which are great for storage use.
Weck 762 Jelly Jar 1/5 Liter (fits half batch): A bit smaller than the above jars, so you may have a scoop or two leftover, but we’ve successfully packed all the oats in.

A single serving of oats topped with sliced fruit and cinnamon in a small glass jar.

Can I warm up overnight oats?

You can! We love how convenient it is to just grab a jar and enjoy them, but you can also heat up the overnight oats if you prefer them warm. As long as the oats are in a glass container (not plastic), you can heat them in the microwave for 30-60 seconds. Or, if you prefer to use the stovetop, scoop the oats into a small saucepan and heat them until warm.

What are some other tasty mix-ins & topping ideas for these peanut butter overnight oats?

Cocoa powder, cacao nibs, or chocolate chips— Chocolate is absolutely delicious with both peanut butter and bananas. You may also like our banana chocolate chip overnight oats!
Peanuts— Add crunch by adding peanuts or using crunchy peanut butter instead of creamy.
Brown sugar— Instead of honey or maple syrup, add 1/2-1 tablespoon of brown sugar to the oat mixture.

You can find more mix-in ideas and plenty of other overnight oat recipes in our master guide to overnight oats.

Want to check out more overnight oat recipes? We’ve got plenty!