High Protein Vegan Overnight Oats with Chia Seeds

Name: High Protein Vegan Overnight Oats with Chia Seeds
Prep time: 8 min
Total time: 8 h 8 min
Yield: 2 servings
Ingredients: 1 cup rolled oats (use certified gluten-free oats if needed); 3 tbsp chia seeds (white or black both work); 2 scoops pea protein powder (unflavoured or vanilla, about 50g total); 1.5 cups unsweetened soy milk (soy milk gives the highest protein content of plant milks); 1 medium ripe banana (mashed); 2 tbsp natural almond butter (smooth, no added sugar or oil); 1 tsp pure vanilla extract; 0.5 tsp ground cinnamon; 1 tsp pure maple syrup (optional, omit if banana is very ripe); 1 pinch fine sea salt (balances the sweetness); 1 tbsp hemp seeds (for topping, adds extra protein and omega-3s); 0.5 cup fresh mixed berries (for topping, blueberries or raspberries work well)

High ProteinVeganDairy-FreeMeal PrepEgg-Free

Prep Time8 min

Servings2

Calories420 kcal

Health Score7/10

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Some mornings you just need breakfast to handle itself. That is exactly what these high protein vegan overnight oats with chia seeds do. You spend about eight minutes the night before, pop the jar in the fridge, and wake up to a thick, creamy, genuinely filling breakfast that is ready before your coffee finishes brewing. No cooking, no fuss, no standing over a stove. Just good food waiting for you.

What makes this recipe stand out from the crowd is the protein strategy. A lot of vegan overnight oat recipes rely solely on oats and chia seeds for their protein content, which leaves you somewhere around 8 to 10 grams per serving. That is fine, but it is not going to carry you through a busy morning. Here, we layer three serious plant-based protein sources: a scoop of unflavoured or vanilla pea protein powder, a generous spoonful of natural almond butter, and unsweetened soy milk, which contains far more protein than oat milk or almond milk. Together, they push the total up to around 28 grams per jar, which is genuinely impressive for a no-cook vegan breakfast. The chia seeds pull double duty too, thickening the oats into a pudding-like texture while adding omega-3 fatty acids, calcium and an extra hit of fibre.

The sweetness here comes entirely from a single ripe banana mashed into the base and a small drizzle of pure maple syrup. No refined sugar, nothing artificial. The banana also adds potassium and natural creaminess, so you get that indulgent thick texture without any dairy. A pinch of cinnamon and a splash of vanilla extract round everything out, adding warmth and depth that make these oats taste far more exciting than their ingredient list suggests. The total sugar content stays low because the banana does the heavy lifting naturally, and you can skip the maple syrup entirely if your banana is very ripe.

These oats are built for meal prep. You can make four or five jars on a Sunday evening and have breakfast sorted for the whole working week. They keep beautifully in the fridge and actually improve after 24 hours as the chia seeds fully hydrate and the oats soften to that perfect spoonable consistency. Top each jar just before eating with a handful of fresh berries, a sprinkle of hemp seeds, or some sliced banana for extra texture. This is one of those recipes that works just as well on a slow weekend morning as it does grabbed from the fridge on a hectic Tuesday.

Ingredients

Serves:2

1 cup rolled oats (use certified gluten-free oats if needed)
3 tbsp chia seeds (white or black both work)
2 scoops pea protein powder (unflavoured or vanilla, about 50g total)
1.5 cups unsweetened soy milk (soy milk gives the highest protein content of plant milks)
1 medium ripe banana (mashed)
2 tbsp natural almond butter (smooth, no added sugar or oil)
1 tsp pure vanilla extract
0.5 tsp ground cinnamon
1 tsp pure maple syrup (optional, omit if banana is very ripe)
1 pinch fine sea salt (balances the sweetness)
1 tbsp hemp seeds (for topping, adds extra protein and omega-3s)
0.5 cup fresh mixed berries (for topping, blueberries or raspberries work well)

Instructions

1
Mash the ripe banana thoroughly in a medium mixing bowl using a fork until it is smooth with very few lumps. The riper and more spotted the banana, the sweeter and creamier your oats will be.
A very ripe banana means you can confidently skip the maple syrup and keep the sugar content even lower.
2
Add the almond butter, vanilla extract, ground cinnamon, sea salt and maple syrup (if using) to the mashed banana. Stir everything together until well combined into a smooth, fragrant paste.
3
Pour in the unsweetened soy milk and whisk until the almond butter paste is fully dissolved into the liquid. There should be no streaks or clumps remaining.
If your almond butter is very stiff from the fridge, let it sit at room temperature for a few minutes before using so it blends more easily.
4
Add the pea protein powder to the liquid mixture and whisk vigorously for about 30 seconds until fully incorporated with no lumps.
Add the protein powder gradually if you find it clumps, whisking as you go.
5
Stir in the rolled oats and chia seeds, mixing well so the chia seeds are evenly distributed throughout the mixture rather than clumping together at the bottom.
Give the mixture a second stir about five minutes after combining to break up any chia seed clusters before jarring.
6
Divide the mixture evenly between two clean mason jars or airtight containers. Press the lids on firmly and refrigerate for a minimum of 6 hours, though overnight (8 hours) gives the best thick, pudding-like texture.
7
In the morning, remove the jars from the fridge. If the oats look very thick, stir in a small splash of soy milk to loosen to your preferred consistency. Top each jar with fresh berries and a sprinkle of hemp seeds before serving.
Eat them cold straight from the jar or let them sit on the counter for 10 minutes if you prefer them closer to room temperature.

Nutrition per serving

420kcal

Calories

28g

Protein

45g

Carbs

13g

Fat

11g

Fibre

Sugar

180mg

Sodium

Pro Tips

✓
Use rolled oats rather than quick oats for the best texture. Quick oats go mushy and lose that satisfying chew after an overnight soak.
✓
Soy milk is the best plant milk choice here for protein. It contains roughly 7 to 8 grams of protein per cup compared to 1 gram in almond or oat milk.
✓
If your protein powder is sweetened, skip the maple syrup entirely and taste before adding any extra sweetener.
✓
Make sure to whisk the protein powder in before adding the oats and chia seeds so it dissolves completely into the liquid.
✓
For a thicker, dessert-style texture, reduce the soy milk to 1.25 cups. For a thinner, more porridge-like consistency, increase to 1.75 cups.
✓
These oats are best after 8 hours but still good after just 6 hours if you are in a time crunch.

Frequently Asked Questions

How much protein do these vegan overnight oats actually contain?↓

Each jar contains approximately 28 grams of protein, coming from the pea protein powder, soy milk, almond butter, oats and chia seeds combined. This makes them genuinely high protein by any standard, not just by vegan breakfast standards.

Can I use a different plant milk instead of soy milk?↓

You can, but your protein total will drop noticeably. Oat milk, almond milk and rice milk all contain around 1 gram of protein per cup versus 7 to 8 grams in soy milk. Pea milk is the next best option if you cannot use soy, with around 8 grams of protein per cup.

Can I use a different protein powder?↓

Absolutely. Brown rice protein, hemp protein and sunflower seed protein all work well here. Hemp protein has a slightly nuttier, earthier flavour that pairs beautifully with the almond butter. Just make sure it is a vegan-certified powder with no added fillers.

Do these overnight oats need to be eaten cold?↓

Not at all. If you prefer warm oats, simply transfer the contents of the jar to a microwave-safe bowl and heat on medium power for 60 to 90 seconds, stirring halfway through. The texture will be slightly softer but just as delicious.

Are chia seeds necessary in this recipe?↓

The chia seeds do a lot of work here, absorbing liquid to create that thick, pudding-like texture and adding fibre, calcium and omega-3 fatty acids. If you need to skip them, flaxseeds are a reasonable swap, though the texture will be slightly less thick.

Can I make these without banana?↓

Yes. Replace the banana with 3 tablespoons of unsweetened applesauce for a similar natural sweetness and binding effect. You may want to add a little extra maple syrup or a few drops of liquid stevia to compensate for the sweetness the banana provides.

Variations

•
Chocolate Peanut Butter
Swap almond butter for natural peanut butter and add 1 tablespoon of unsweetened cacao powder to the liquid base. Top with a few dark chocolate chips and banana slices.
•
Mango Ginger Tropical
Use vanilla pea protein, add 0.25 teaspoon of ground ginger to the base, and top with diced fresh mango and a sprinkle of toasted coconut flakes.
•
Matcha Almond
Whisk 1 teaspoon of ceremonial grade matcha powder into the soy milk before combining. Keep the almond butter, top with sliced almonds and a few raspberries for colour.
•
Berry Vanilla Protein
Use vanilla pea protein, mash a handful of fresh strawberries into the base alongside the banana, and top with blueberries and a tablespoon of hemp seeds.

Substitutions

•
Soy milk → Pea milk (Pea milk (such as Ripple brand) is the closest match to soy milk in protein content, providing around 8 grams per cup.)
•
Pea protein powder → Hemp protein powder (Hemp protein has a slightly nuttier flavour and a slightly lower protein density per scoop, so you may want to use a slightly larger scoop to compensate.)
•
Almond butter → Sunflower seed butter (Sunflower seed butter keeps the recipe completely nut-free while still contributing healthy fats and a small amount of protein.)
•
Rolled oats → Certified gluten-free rolled oats (Regular oats are technically gluten-free but are often processed in shared facilities. For coeliac-friendly oats, use a certified gluten-free brand.)
•
Maple syrup → Medjool date paste (Blend 1 to 2 pitted Medjool dates with a splash of water to make a date paste. This adds natural sweetness with extra fibre and a caramel-like depth.)
•
Banana → Unsweetened applesauce (Use 3 tablespoons of unsweetened applesauce if you do not like banana. The texture will be slightly less thick but the result is still delicious.)

🧊 Storage

Store sealed jars in the refrigerator for up to 5 days. Add fresh toppings like berries and hemp seeds just before eating rather than storing them in the jar, so they stay fresh and the berries do not bleed into the oats.

📅 Make Ahead

This recipe is ideal for weekly meal prep. Make up to 5 jars on Sunday evening and you have breakfast covered until Friday. The flavour and texture actually improve from day 1 to day 2 as the oats and chia seeds fully absorb the liquid.