
Banana, Peanut Butter, and Chocolate Overnight Oats
These High Protein Chunky Monkey Overnight Oats bring together the familiar combination of banana, peanut butter, peanuts, and chocolate in a make-ahead breakfast. Greek yogurt, protein powder, chia seeds, peanut powder, and rolled oats create the hearty base, with approximately 30 or more grams of protein per serving depending on the protein powder and milk used.
The recipe makes four servings, so it works well when I want to prepare several breakfasts at once. Everything can be portioned into individual jars or containers, making each serving easy to grab from the refrigerator.
What Does “Chunky Monkey” Mean in Overnight Oats?
“Chunky Monkey” describes the banana, peanut, and chocolate flavor combination. In this recipe, mashed ripe banana is mixed into the oat base, while peanut butter and peanut powder add peanut flavor throughout. Chocolate and chopped peanuts complete the combination.

Tips for the Best Texture
A few simple details help these banana peanut butter overnight oats turn out well:
– Use old-fashioned rolled oats rather than quick oats for a more substantial texture.
– Stir the base thoroughly so the protein powder, chia seeds, peanut powder, and peanut butter are evenly distributed.
– Mash the banana before adding it so its flavor blends into the oats.
– Give the oats the full chilling time listed in the recipe card so the oats and chia seeds can soften.
– Stir each serving before adding toppings.
Protein powders vary in sweetness and texture. Taste the mixture before adding optional sweetener, especially if the vanilla protein powder is already sweetened.
How to Keep Fresh Banana Toppings Looking Their Best
Mixing mashed banana into the base gives every serving banana flavor. For the optional topping, wait to slice the fresh banana until just before eating. This helps the slices maintain their best appearance instead of sitting on top of the oats during storage.
The mashed banana in the oat mixture can be prepared with the other ingredients when portioning all four servings. Keep the containers covered and refrigerated, then add the fresh toppings when serving.

Optional Topping Ideas
The toppings let you adjust the texture and presentation without changing the prepared oat base. Fresh banana slices reinforce the banana flavor, while chopped peanuts add crunch. A peanut butter or chocolate drizzle makes the Chunky Monkey combination more noticeable on top.
For deeper peanut flavor, toast the chopped peanuts before using them. Let them cool before adding them to the oats, especially if the servings are being prepared ahead.
Choosing Containers for Meal Prep
Use covered jars or food-storage containers with enough room to stir the oats and add toppings. Dividing the mixture after it is fully combined helps distribute the banana, chocolate, and oat base more evenly among the servings.
If refrigerator space is limited, short, stackable containers may be more practical than tall jars. Either option works as long as each container can be sealed.
Can You Change the Milk?
Yes. The recipe allows unsweetened almond milk or another milk of choice. Because different milks and protein powders can affect consistency, stir the oats well before serving and follow the recipe card as written for the initial preparation.

When to Serve Chunky Monkey Overnight Oats
These oats are designed as a chilled, make-ahead breakfast, but they can also be used as a prepared snack. Since the recipe is portioned into four containers, it is especially convenient for meal prep. Keep the toppings separate if you want the banana slices and peanuts to look fresh and retain their distinct texture.
High Protein Chunky Monkey Overnight Oats
Ingredients
Overnight Oats Base
- 1 cup old-fashioned rolled oats
- 1 ½ cups unsweetened almond milk or milk of choice
- 1 cup nonfat Greek yogurt
- 3 scoops vanilla protein powder
- 3 Tbsp chia seeds
- 3 Tbsp peanut powder PB2-style, more if you want more pb flavor
- 2 Tbsp natural peanut butter
- 1 tsp vanilla extract
- Sweetener to taste if needed, depending on protein powder
- Pinch of salt
Chunky Monkey Add-Ins
- 1 medium ripe banana mashed
- ¼ cup sugar-free chocolate chips or chopped sugar-free chocolate Use more or less, depending on tastes
Optional Toppings (for serving/photos)
- Banana slices
- 1 T Chopped peanuts more or less, depends on your tastes and nutritional needs
- Peanut butter drizzle I used about 2 tablespoons melted for all 4 jars
- Sugar-free chocolate drizzle
- Sprinkle of cinnamon
Instructions
- In a blender, combine oats, almond milk, Greek yogurt, protein powder, chia seeds, peanut powder, peanut butter, vanilla, sweetener, and salt. Blend until fully combined.
- Fold in the mashed banana and chocolate chips.

- Divide mixture between 4 jars or containers.

- Cover and refrigerate overnight (or at least 4 hours) to allow the oats and chia seeds to soften.

- Before serving, top with banana slices, chopped peanuts, and a drizzle of peanut butter and chocolate if desired.

Notes
* If meal prepping all 4 servings at once, the mashed banana mixed into the base should hold well for several days, but topping each serving fresh gives the best appearance.
* Toasting the chopped peanuts first adds even more “Chunky Monkey” flavor.
**Protein:** approximately 30+ grams per serving (depending on protein powder used).
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