These Key Lime Pie Overnight Oats are a fun twist on breakfast! They combine creamy yogurt, oats, and zesty lime for a refreshing start to your day.
Honestly, who wouldn’t want to wake up to dessert? I love topping mine with a sprinkle of graham cracker crumbs for that extra pie flavor. Yum! 😋
Ingredients & Substitutions
Rolled oats: These give structure to your overnight oats. If you prefer a creamier texture, you could swap them for quick-cooking oats, but note that they will absorb liquid faster.
Milk: Use your favorite milk, whether it’s whole, almond, or oat milk. For a richer flavor, I love to use coconut milk. Just remember, coconut adds its own flavor!
Greek yogurt: This adds creaminess and protein. If you’re dairy-free, coconut yogurt is a great alternative. It gives a similar texture! You could also skip it and use more milk for a lighter version.
Chia seeds: They help bind the mixture and add fiber. If you don’t have chia seeds, you can skip them, but I recommend them for extra thickness. Flax seeds are a good alternative if you’re looking for something similar.
Honey or maple syrup: Both sweeteners work well here. If you want to keep it sugar-free, try mashed banana or stevia instead!
Lime: The zest and juice give that refreshing key lime flavor. If limes aren’t available, lemons can work as a zesty substitute, just keep in mind the flavor will be slightly different
How Do I Make Sure My Overnight Oats Are Perfectly Creamy?
Getting that creamy texture in overnight oats primarily depends on the soaking time and the liquid-to-oats ratio. Here are some tips:
- Mix the oats with enough milk and yogurt to fully hydrate them. The typical ratio is about 1:1 for oats and milk, but you can adjust it.
- Using chia seeds helps thicken the mixture as they absorb liquid. Just ensure you stir them well into the oats!
- Let them soak overnight (or at least 4 hours): This gives the flavors time to meld, and the oats soften perfectly, creating a creamy texture.
- Adjust the thickness in the morning. If they’re too thick for your liking, you can always add a splash of milk to achieve your desired creaminess.

Key Lime Pie Overnight Oats
Ingredients You’ll Need:
Main Ingredients:
- 1/2 cup rolled oats
- 1/2 cup milk (dairy or plant-based)
- 1/4 cup Greek yogurt (plain or vanilla)
- 1 tablespoon chia seeds
- 2 tablespoons honey or maple syrup
- Zest of 1 lime
- Juice of 1 lime (about 2 tablespoons)
- 1/4 teaspoon vanilla extract
Toppings (Optional):
- 1/4 cup crushed graham crackers
- 2 tablespoons chopped pecans
- Additional lime slices or zest (for garnish)
How Much Time Will You Need?
This recipe takes about 10 minutes to prepare and requires at least 4 hours (or ideally overnight) of chilling time in the refrigerator. So, if you’re looking for a quick breakfast that you can prep the night before, this is a perfect choice!
Step-by-Step Instructions:
1. Combine the Base Ingredients:
In a medium-sized bowl or a mason jar, combine the rolled oats, chia seeds, and Greek yogurt. Stir everything together well to mix up the dry and wet ingredients evenly.
2. Add the Flavor Agents:
Add the milk, honey or maple syrup, lime zest, lime juice, and vanilla extract to the mixture. Stir well until all the ingredients are evenly mixed and the oats are fully coated with the liquid and creamy yogurt.
3. Chill Overnight:
Cover the bowl or jar with a lid or plastic wrap. Refrigerate overnight, or for at least 4 hours, allowing the oats and chia seeds to soak up the flavors and soften to create a creamy consistency.
4. Ready to Serve:
The next morning, take your oats out of the refrigerator and give them a good stir. If the mixture seems too thick for your liking, just add a splash of milk to loosen it up a bit.
5. Top Your Oats:
If you like, sprinkle some crushed graham crackers on top for that classic pie crust effect. Then, add the chopped pecans for extra crunch and flavor.
6. Garnish and Enjoy:
For an even prettier presentation, garnish with additional lime slices or zest. Serve chilled and enjoy your refreshing Key Lime Pie Overnight Oats!
Can I Use Quick Oats Instead of Rolled Oats?
Yes, you can use quick oats in this recipe! However, keep in mind that they will absorb the liquid faster and result in a softer texture. If you prefer a chewier bite, stick with rolled oats.
Can I Make This Vegan?
Absolutely! To make it vegan, simply use plant-based milk (like almond or oat milk) and swap out Greek yogurt for a dairy-free yogurt alternative. Maple syrup is already vegan, so you’re set on the sweetener!
How Do I Store Leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. Just give it a good stir before serving! You may need to add a splash of milk to reactivate the creaminess after chilling.
What Other Toppings Can I Use?
Feel free to get creative! Fresh berries, shredded coconut, or sliced bananas would all make great toppings. You can also use a dollop of whipped cream for an extra treat!



