Oreo Overnight Oats (High Protein, High Fiber)

If you love anything Oreo flavored or cookies and cream inspired like I do, you just have to try these Oreo overnight oats. These creamy oats have just enough cookies and cream flavor to feel like you’re having a treat, but they’re still full of nutrient-dense, wholesome ingredients.

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A clear glass jar of overnight oats with crumbled oreo cookies on top.

Why you’ll love these:

Oreo cookies are my favorite cookies, hands down, so I love creating delicious recipes with them! Here’s why you’re going to love these Oreo overnight oats too:

Overnight oats are one of my breakfast staples because they only take a few minutes to prepare and they don’t require any cooking!
The best part is that they’re perfect for meal prep. Just make them ahead, store in airtight containers containers and eat within 3-4 days. Having breakfasts prepped ahead are perfect for busy mornings.
These overnight oats are high protein and high fiber to support healthy digestion and keep you full all morning. Each serving has 22 grams of protein and 9 grams of fiber!
They’re full of delicious Oreo cookies and cream flavor! These overnight oats feel like an indulgent breakfast treat, but they’re a perfectly well-balanced breakfast full of healthy ingredients too.

Let’s get into what you need to make them next!

Ingredients

Rolled oats: When purchasing oats for overnight oats, you want to look for rolled oats. When they soak up the liquid from the recipe they end up being the perfect texture! Instant oats or “quick oats” will work too, but the texture will be mushier.
Milk: Regular cow’s milk or dairy-free milk will work for these. I recommend using whatever type of milk you typically like to drink or use in recipes. Non-dairy milk like soy milk, coconut milk, oat milk, or almond milk would all work.
Plain Greek yogurt: Plain Greek yogurt is a great source of protein that also adds creaminess to these oats. You can use any kind that you like. Full fat or 2% will be give a creamier texture than fat-free. You can also use vanilla yogurt.
Chia seeds: Chia seeds are high fiber and high in healthy fats, making them a great ingredient to include in overnight oats. They also help to thicken the oats. You can use black or white chia seeds.
Crushed Oreos or any chocolate sandwich crackers: Each serving of overnight oats has one crushed up cookie inside (or measure with your heart, of course).
Vanilla extract: Vanilla extract helps to flavor your oats.
Honey: I like to add a little bit of honey or maple syrup for extra sweetness, but if you’re aiming for a lower sugar breakfast, you can always skip the honey or use a lower sugar liquid sweetener, like this monk fruit and allulose syrup.

Step-by-step instructions

Add your oats, chia seeds, milk, crushed Oreo, vanilla, honey, and yogurt to your jar or container. Stir the oat mixture well until well combined. Cover.

Milk being poured into a clear glass jar with oreo overnight oats ingredients inside.

Place your oats containers in the fridge to set for at least 4 hours, or overnight.
After your overnight oats have set, give them a quick stir and add any additional topping that you want!

A clear jar of oats, crumbled oreo cookies, honey, chia seeds, milk and yogurt being mixed with a gold spoon.

Variations & topping ideas

Make peanut butter Oreo overnight oats by swirling in a tablespoon or two of melted peanut butter (or almond butter, cashew butter, sunflower seed butter, etc).
Add frozen or fresh fruit like berries, strawberries or sliced bananas.
Top with chopped almonds, walnuts, or peanuts.
Add your favorite granola for texture and crunch!
Add white chocolate chips to complement the classic cookies and cream flavor!
Make them even higher protein by adding a 1/2 or full scoop of your favorite vanilla or chocolate protein powder.

Recipe FAQ

What kind of milk should I use?

When it comes to overnight oats, any milk will work! I recommend using the kind that you drink so that you know you enjoy it. Just keep in mind that regular cow’s milk will typically have more protein than a plant-based alternative unless you choose one that’s fortified with extra protein.

My overnight oats are too thick/too liquidy. What did I do wrong?

My favorite basic overnight oats ratio is 1/2 cup oats, 1 tbsp chia seeds, 1/2 cup milk. If you prefer thicker oats, try reducing the milk to 1/3 cup. If you prefer oats that are a little more liquid-y add a splash of milk until they’re the consistency you want.

Cookies for breakfast? Are these healthy?

While these overnight oats do have some added sugar, they also have lots of wholesome, nutritious ingredients! It’s a nutritious breakfast packed with protein, heart-healthy fiber, and healthy fats! If you have health goals, you’ll find it so much easier to eat a consistently healthy diet when you find balance with all foods.

Storage tips

Any airtight container will work, but I find small jars that are 10-16 oz. to be the best size for overnight oats. I love these 12 oz. containers with bamboo lids or 16 oz. wide mouth mason jars.

More sweet breakfast recipes you’ll love:

The Best Oreo Protein Shake (Cookies & Cream!)

Maple Brown Sugar Overnight Oats (High Protein)

Blueberry Cheesecake Overnight Oats (High Protein & High Fiber)

Biscoff Overnight Oats (High Protein & High Fiber)

Quick & Healthy Pumpkin Protein Overnight Oats