Blueberry Overnight Oats (High Protein, Easy & Healthy!)

If you’re looking for a quick and nourishing breakfast that you can meal prep in minutes, these Blueberry Overnight Oats are about to be your new go-to. They’re creamy, naturally sweet, packed with protein, and perfect for busy mornings.

This recipe is one of my favorite ways to start the day because it requires zero cooking and lasts in the fridge for up to 5 days. Just prep a few jars on Sunday night and you’ll have breakfast ready all week long.

The best part? Thanks to protein powder, chia seeds, and nut butter, these overnight oats aren’t just carbs… They’re a balanced, high-protein meal filled with healthy fats & omega 3’s from the chia seeds that will actually keep you full and energized for hours.

Why You’ll Love These Blueberry Overnight Oats

• High protein breakfast – over 25g of protein per serving (depending on the protein powder you use).
• Meal prep friendly – make a batch once and have breakfast ready for the week.
• Kid friendly – tastes like a treat, but made with wholesome ingredients.
• Customizable – switch up the fruit, nut butter, or toppings to keep it fun.
• No cooking required – just stir, chill, and enjoy!

Ingredients You’ll Need

Here’s what goes into this recipe:

• Old fashioned oats – the base of overnight oats (use gluten-free oats if needed).
• Chia seeds – add thickness, fiber, and healthy fats.
• Vanilla protein powder – I use Promix Vanilla Whey Protein because it’s made with only clean ingredients, naturally sweetened, and easy to digest. (Use code CLAIRE to save 10% if you want to try it!)
• Milk of choice – dairy or plant-based both work.
• Blueberries – fresh or frozen, both are delicious.
• Nut butter – almond or peanut butter makes them creamy and adds healthy fats.
• Coconut flakes – optional, but add great flavor and texture.

How to Make Blueberry Overnight Oats

1. Mix the base – Add oats, chia seeds, protein powder, and milk to a jar or container. Stir well until everything is combined.
2. Add fruit – Fold in fresh or frozen blueberries.
3. Chill – Cover with a lid and refrigerate for at least 4 hours, or overnight.
4. Top & enjoy – In the morning, give the oats a good stir and top with nut butter and coconut flakes before eating.

That’s it, your breakfast is ready to grab and go!

Tips for the Best Overnight Oats

• Stir twice – give the mixture a quick stir after 10–15 minutes in the fridge so the chia seeds don’t clump.
• Batch prep – make 3–5 jars at once for a full week of breakfasts.
• Use frozen blueberries – they thaw overnight and create a naturally sweet “jammy” swirl.
• Add crunch – top with granola or crushed nuts for extra texture.

Substitutions & Variations

• Protein powder – use your favorite whey or plant-based option. Vanilla works best here, but chocolate is also delicious.
• Milk – swap almond milk, oat milk, or dairy milk.
• Fruit – switch blueberries for raspberries, strawberries, or even banana slices.
• Nut butter – almond, peanut, or cashew butter all work. Sunbutter makes it nut-free.
• Toppings – try cacao nibs, hemp seeds, or extra coconut flakes.

Recommended Protein:

I’ve been loving Promix Vanilla Whey in this recipe! It’s clean, naturally flavored, and seriously so good in overnight oats, and really everything! I love Promix because they use the highest quality ingredients possible, with nothing artificial, and the consistency is perfect every time. You can use my code CLAIRE for 10% off if you want to try Promix!

Nutrition:

~413 calories | 40g carbs | 34g protein | 15g fat