High Protein Overnight Oats with Chocolate Whey and Banana

If your mornings feel like a scramble before you even open your eyes, these high protein overnight oats with chocolate whey and banana are about to change everything. You spend five minutes the night before, shake a few things together in a jar, and wake up to a breakfast that genuinely tastes like chocolate banana pudding. The difference between this recipe and a regular bowl of oats is significant though. This version is built around muscle recovery, steady energy and real nutritional value, not just convenience.
The foundation here is rolled oats combined with chocolate whey protein powder, and that combination does some serious heavy lifting. Rolled oats bring slow-digesting complex carbohydrates and a solid dose of beta-glucan fibre, which keeps blood sugar steady and hunger at bay until well past lunchtime. The chocolate whey protein powder does two things at once: it flavours the oats naturally without needing added sugar, and it pushes the protein count up to around 35 grams per serving. That is a genuinely meaningful amount for a breakfast. Add in a ripe banana, which sweetens everything naturally while contributing potassium and resistant starch, and you have a breakfast that actually works for your body. Greek yogurt goes in too, thickening the texture and adding probiotics alongside even more protein. Raw cacao powder deepens the chocolate flavour without the sugar load of cocoa-flavoured syrups, and a tablespoon of chia seeds rounds things out with omega-3 fats and extra fibre. Every single ingredient is earning its place here.
One thing worth talking about is the banana choice, because it genuinely matters. A banana that is just ripe, with a few small spots starting to appear, will mash smoothly and give you the best natural sweetness without being overpowering. An underripe banana adds starchiness and a slightly bitter edge. An overripe one works beautifully too if you want extra sweetness with no added sweetener at all. Half the banana gets mashed directly into the oat mixture before it goes in the fridge, and the other half gets sliced on top in the morning. That contrast of creamy, chocolate-soaked oats underneath and fresh banana slices on top makes it feel genuinely special rather than just a jar of cold mush. A small drizzle of natural almond butter over the top adds healthy fats and that slightly salty, nutty contrast that makes chocolate and banana sing together.
This recipe is built for meal prep without apology. You can make up to four jars in one go on a Sunday evening, stack them in the fridge, and have breakfast sorted from Monday through Thursday. Each jar holds well for four days, so you never have to think about breakfast during the week at all. The oats continue to soften overnight and the flavours deepen as they sit, which means day three actually tastes better than day one. If you train in the mornings, eat one of these about thirty minutes before you head out or immediately after your session. The carbohydrate and protein combination genuinely supports performance and recovery. And if you are not a gym person, that is completely fine too. A high protein, high fibre breakfast helps everyone maintain energy and focus through the morning, whether your workout is a commute or a spreadsheet.
Ingredients
- 1 cup rolled oats (use certified gluten-free oats if needed)
- 2 scoops chocolate whey protein powder (approximately 60g total, one scoop per serving)
- 2 tablespoons raw cacao powder (unsweetened, not hot chocolate mix)
- 2 tablespoons chia seeds
- 1 large ripe banana (divided, half mashed into mixture and half sliced for topping)
- 1 cup plain low-fat Greek yogurt (full-fat also works for extra creaminess)
- 1 cup unsweetened almond milk (or any milk of your choice)
- 1 teaspoon pure vanilla extract
- 1 teaspoon ground cinnamon (helps regulate blood sugar)
- 1 tablespoon pure maple syrup (optional, only add if your banana is not fully ripe)
- 2 tablespoons natural almond butter (one tablespoon per jar, for topping)
- 1 pinch sea salt (enhances the chocolate flavour)
Instructions
- 1
Peel the banana and break it in half. Take one half and mash it thoroughly in a small bowl using a fork until it becomes a smooth paste with no large lumps remaining. Set the other half aside for topping.
A banana with small brown spots mashes most easily and gives the sweetest, creamiest result.
- 2
Add the rolled oats, chocolate whey protein powder, raw cacao powder, chia seeds, ground cinnamon and sea salt into a large mixing bowl. Stir the dry ingredients together until the protein powder and cacao are evenly distributed through the oats.
Mixing the dry ingredients first prevents the protein powder from clumping when the liquid is added.
- 3
Add the Greek yogurt, almond milk and vanilla extract to the dry mixture. Stir well until everything is fully combined. Fold in the mashed banana and the maple syrup if you are using it. Mix until the banana is completely incorporated and the mixture has a uniform chocolate colour.
The mixture will look quite loose at this stage. Do not worry, the oats and chia seeds will absorb the liquid overnight and thicken beautifully.
- 4
Divide the mixture evenly between two clean mason jars or airtight containers. Each jar should be roughly half to two-thirds full to leave room for toppings in the morning. Seal the lids tightly.
- 5
Place the jars in the refrigerator for a minimum of six hours, though overnight for eight hours gives the best texture. The oats will soften completely and the mixture will thicken into a creamy, pudding-like consistency.
If you can, give the jars a quick shake or stir after the first hour to redistribute the chia seeds before they set.
- 6
In the morning, remove the jars from the fridge. Slice the reserved banana half into rounds and divide evenly between the two jars. Drizzle one tablespoon of almond butter over the top of each jar. Serve cold straight from the fridge, or let it sit on the counter for ten minutes if you prefer it slightly less chilled.
Add a few dark chocolate chips or a light dusting of extra cacao powder on top for a beautiful presentation.
Nutrition per serving
420kcal
Calories
35g
Protein
48g
Carbs
11g
Fat
9g
Fibre
14g
Sugar
210mg
Sodium
Pro Tips
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Use a chocolate whey protein powder you genuinely enjoy drinking on its own. The flavour carries through strongly, so a good quality powder makes a noticeable difference.
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If the oats are too thick in the morning, stir in a splash of almond milk to loosen them to your preferred consistency.
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Prepare up to four jars at once for a full week of breakfasts. The recipe scales easily, just multiply all ingredients by the number of servings you need.
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For even more protein per serving, swap one tablespoon of almond butter for two tablespoons of powdered peanut butter mixed into the base.
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Let the banana get properly ripe before using it. The more spots it has, the more natural sweetness it contributes, which means you need less or no maple syrup at all.
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If your protein powder is sweetened, taste the mixture before adding maple syrup and skip it entirely if it is already sweet enough.
Frequently Asked Questions
Variations
- •
Double Chocolate Crunch
Stir one tablespoon of mini dark chocolate chips into the base mixture before chilling. Top with a light sprinkle of crushed rice cakes or granola in the morning for a satisfying crunch alongside the creamy oats.
- •
Chocolate Peanut Butter Banana
Swap the almond butter topping for natural peanut butter, and stir one extra tablespoon of powdered peanut butter into the base mixture. The classic chocolate and peanut butter combination with banana is hard to beat.
- •
Mocha Banana Overnight Oats
Add one teaspoon of instant espresso powder to the dry ingredients. The coffee deepens the chocolate flavour significantly and adds a gentle caffeine boost alongside your morning protein hit.
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Dairy-Free Chocolate Banana Jars
Replace Greek yogurt with full-fat coconut yogurt and use chocolate plant-based protein powder in place of whey. Use oat milk instead of almond milk for extra creaminess. The result is fully vegan and still very high in protein and fibre.
Substitutions
- •Chocolate whey protein powder → Chocolate plant-based protein powder (A pea or brown rice blend works best. Check the protein content per scoop on your chosen brand and adjust quantity if needed.)
- •Greek yogurt → Coconut yogurt or oat yogurt (Makes the recipe dairy-free. Use a thick variety to maintain the creamy texture. Protein content per serving will be slightly lower.)
- •Almond milk → Oat milk, soy milk or full-fat dairy milk (Soy milk adds the most protein. Oat milk adds natural sweetness. Dairy milk increases the overall protein count slightly.)
- •Almond butter → Natural peanut butter or sunflower seed butter (Sunflower seed butter makes the recipe nut-free. Natural peanut butter adds the most familiar flavour alongside chocolate and banana.)
- •Maple syrup → Raw honey or leave out entirely (If your banana is very ripe and your protein powder is sweetened, you almost certainly will not need any additional sweetener at all.)
- •Rolled oats → Quick oats (Quick oats will give a softer, slightly more pudding-like texture. Avoid steel-cut oats as they do not soften sufficiently overnight without cooking.)
🧊 Storage
Store sealed jars in the refrigerator for up to 4 days. Keep fresh banana and almond butter toppings separate and add only on the morning of eating. Do not freeze, as the texture of the yogurt and oats deteriorates significantly after thawing.
📅 Make Ahead
This recipe is ideal for weekly meal prep. Make up to 4 jars on Sunday evening and stack them in the fridge. Jars are ready to eat from Monday through Thursday with no morning effort required. Label each jar with the date made if you are prepping multiple days at once.


