Key Lime Pie Overnight Oats

These Key lime pie overnight oats are creamy, tangy, and delicious. They are easy to meal prep and take on-the-go. They're the perfect nourishing way to start your day!

Many of us don't have time to make a big breakfast in the morning. These Key lime pie overnight oats are easy to make before heading out the door.

The overnight oats are super creamy and full of tart flavor from the lime juice and zest. They're plant-based, gluten free, and made without yogurt.

You only need 10 minutes and 8 simple ingredients to meal prep these overnight oats. The best part is that there is no cooking involved!

If you're big fan of oats, check out my blueberry cheesecake overnight oats, Biscoff overnight oats, lemon cheesecake overnight oats, frozen Greek yogurt granola bars, and old fashioned peach crisp.

Why You'll Love This Recipe

• Naturally sweetened with honey- There are no added sugars in this recipe, making it something you can feel great about eating.
• Only take 10 minutes to prep- This recipe could not be easier for meal prepping! You can whip a batch up on Sunday night and have breakfast taken care of for the week. If you store the oats in jars, it's even easier to take them on the go.
• Taste like Key Lime Pie- When you're craving a slice of pie for breakfast, make these instead!

Key Ingredient Notes

Here are some notes about some of the key ingredients used. The full ingredient list is in the recipe card below!

• Coconut milk- I used canned low fat coconut milk so that the oats wouldn't get to thick. Full fat will also work.
• Whole rolled oats- Make sure to use old-fashioned whole rolled oats; quick cooking and steel cut oats won't work in this recipe. Old fashioned oats will soak up all the liquid overnight and keep a nice texture. Steel cut and quick cooking oats will get mushy. Make sure to use gluten free oats to make this recipe gluten free.
• Chia seeds- These add more nutritional value to the oats and help them get extra creamy after soaking up the liquid overnight.
• Key lime juice and zest- If you can't find Key limes, regular limes will do. Key limes are smaller and more aromatic than typical grocery store limes.
• Honey- I used wildflower honey, but two of my favorites are Buckwheat and Manuka honey.
• Vanilla protein powder- Adding protein powder boosts the nutritional value of overnight oats. Make sure to choose a protein powder that fits your dietary preferences and tastes great! If protein powder isn't your thing, you can use unflavored collagen peptides instead or omit the protein completely.

Substitutions and Additions

• Maple syrup- Maple syrup can be substituted for honey to make this recipe totally vegan.
• Greek yogurt- You can top the oats with plain or vanilla Greek yogurt instead of coconut cream.
• Add nut butter- Add some cashew or almond butter for more flavor and nutrients.
• Add fresh fruit- Cut up some fresh pineapple or mango and add on top of your Key lime overnight oats for a tropical twist.

Step by Step Instructions

Step 1: Combine the oats, chia seeds, Key lime zest, and protein powder in a container such as a large mason jar or Tupperware.

Step 2: Pour in the coconut milk, Key lime juice, and honey. Stir the mixture until it is well combined. Make sure to mix well to stir up any protein powder that may be stuck to the bottom of the container.

Step 3: Pop the lid on the container and place in the refrigerator overnight or for at least 6 hours.

Step 4: Portion the oats into individual containers and top with graham crackers, coconut cream, and any additional toppings you like. See the notes below for ideas!

Expert Tips for Success

• Use mason jars for easy storage; they're super cute and sustainable! I'm also a huge fan of Weck jars or plain old glass Tupperware.
• You can double, triple, or quadruple this recipe if you are meal-prepping for a busy, hungry family.
• Some protein powders taste chalky or just don't taste good. Please use a protein powder you enjoy! It is optional but really helps give the oats a boost.
• Use any toppings you like! Some ideas are fresh fruit, nuts, and seeds.

Storage Instructions

Overnight oats will stay fresh in the refrigerator for up to 4 days in an airtight container. They will get creamier over time. If your oats seem a little too thick, dry, or stiff, add a splash of milk to them before serving. Do not add fresh fruit or any other toppings to the oats until just before you eat them to keep the texture right.

Freezing Instructions

You can freeze the overnight oats in a freezer-safe container for up to 1 month. To thaw, place them in the refrigerator the night before you want to eat them.

Frequently Asked Questions