These Key Lime Pie Overnight Oats are a tasty and fun way to start your day! Made with creamy yogurt, oats, and a zesty lime flavor, they’re like dessert for breakfast!
I love how easy they are to prepare the night before. Just mix everything in a jar, pop it in the fridge, and you have a refreshing treat waiting for you in the morning! 🍋
Key Ingredients & Substitutions
Rolled Oats: Use rolled oats for the best texture. If you’re gluten-free, look for certified gluten-free oats. Quick oats can work too, but they may become mushy.
Greek Yogurt: I prefer Greek yogurt for its creaminess. If you’re looking for a dairy-free option, consider coconut yogurt or almond yogurt. They add a nice flavor too!
Milk: You can use any milk you like—dairy, almond, coconut, or oat milk work great. Adjust the amount based on how creamy you want it.
Sweetener: Sweetened condensed milk gives a lovely sweetness and richness. You can swap it with maple syrup or agave nectar if you want a vegan option.
Lime Juice: Fresh key lime juice is the best for authentic flavor, but regular lime juice works too in a pinch!
How Do You Achieve the Perfect Blend of Flavors in Overnight Oats?
The key to delicious overnight oats is balancing flavors and textures. Start by thoroughly mixing your ingredients to ensure the oats soak up all that lime flavor overnight.
- After mixing, taste the mixture. Adjust the sweetness with more honey or condensed milk if needed.
- Make sure to stir the oats again the next morning. This keeps everything well combined.
- Top with graham cracker crumbs just before serving; they add a nice crunch that mimics pie crust.
Keep the overnight oats stored in an airtight container, and you can enjoy them for several days—just add toppings each morning! Enjoy your tasty breakfast that feels like dessert!

How to Make Key Lime Pie Overnight Oats
Ingredients You’ll Need:
- 1/2 cup rolled oats
- 1/2 cup plain Greek yogurt
- 1/2 cup milk (dairy or non-dairy)
- 2 tablespoons sweetened condensed milk or honey (for sweetness)
- 1 tablespoon lime juice (preferably fresh key lime juice)
- 1 teaspoon lime zest
- 1/4 teaspoon vanilla extract
- Pinch of salt
- Graham cracker crumbs (for topping)
- Additional lime zest and small lime wedges (for garnish)
How Much Time Will You Need?
This recipe takes about 10 minutes to prep and then at least 4-6 hours to chill overnight in the fridge. You’ll have a delicious and refreshing breakfast ready when you wake up with minimal effort!
Step-by-Step Instructions:
1. Combine Ingredients:
Start by gathering your ingredients. In a medium bowl or a jar, mix together the rolled oats, Greek yogurt, milk, sweetened condensed milk or honey, lime juice, lime zest, vanilla extract, and a pinch of salt. Stir well to make sure everything is nicely combined.
2. Refrigerate Overnight:
Cover the bowl or seal the jar with a lid. Place it in the refrigerator and let it chill overnight, or for at least 4-6 hours. This allows the oats to soften and the flavors to meld beautifully.
3. Mix and Serve:
The next morning, take the bowl or jar out of the fridge. Give the oats a good stir to mix everything together. If the mixture feels too thick, feel free to add a splash of milk to achieve your desired consistency.
4. Add Toppings:
To serve, spoon the creamy oats into a bowl or keep them in the jar. Top with graham cracker crumbs, sprinkle with extra lime zest, and add a wedge or two of fresh lime for a delightful garnish.
5. Enjoy!
Dig in and enjoy your bright, creamy, and tangy Key Lime Pie Overnight Oats that taste just like dessert! They’re perfect for a quick breakfast or a snack anytime you crave something sweet and zesty.
Can I Use Instant Oats Instead of Rolled Oats?
While you can use instant oats, I recommend sticking with rolled oats for the best texture. Instant oats tend to get mushy due to their finer texture. If you choose to use them, reduce the soaking time to a few hours instead of overnight.
Can I Make This Recipe Vegan?
Absolutely! To make it vegan, simply substitute the Greek yogurt with a non-dairy yogurt and use plant-based milk, such as almond or coconut milk. You can also replace sweetened condensed milk with maple syrup or agave syrup for sweetness.
How Do I Store Leftover Overnight Oats?
Store any leftovers in an airtight container in the fridge for up to 3 days. If the oats thicken more than you’d like, just add a little milk before enjoying to bring back the desired consistency.
Can I Adjust the Sweetness Level?
Definitely! You can adjust the sweetness according to your taste by adding more or less sweetened condensed milk or honey. A dash of powdered sugar is also a good option if you want a quick sweet fix.
