Key Lime Pie Overnight Oats: Bright, Creamy Breakfast You’ll Love

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I never expected a breakfast to transport me to Florida—but the first bite of these key lime pie overnight oats did just that. Growing up in the South of France, my world was lavender and lemon. But after moving to the U.S., I was introduced to key limes during a summer visit to my aunt in Miami. I’ll never forget the zingy flavor of that first slice of key lime pie—cool, creamy, bright with citrus, and finished with that buttery graham cracker crunch.

Years later, while looking for ways to make breakfast exciting again, that memory returned. What if I could turn that flavor into a high-fiber, no-cook, good-for-you morning? That’s how key lime pie overnight oats were born in my kitchen—made from just a few clean ingredients, bursting with tropical flavor, and completely prep-friendly.

From Provence Mornings to Florida Flavors

In my home, mornings are sacred but often rushed. I wanted a recipe that felt indulgent without the hassle—something creamy, refreshing, and loaded with nutrition. Overnight oats had already become a staple, especially after falling in love with overnight Weetabix for how effortless it made breakfast.

So I played around with lime zest, Greek yogurt, and oats, then added a crushed graham topping for texture. It worked. These key lime overnight oats taste just like dessert, but they’re packed with fiber, probiotics, and slow-burning carbs.

And like my cottage cheese ice cream, they’re proof that healthy food doesn’t have to be boring. Just one jar, a few ingredients, and your morning is transformed.

What Makes Key Lime Overnight Oats Special

Balanced, Bright & Bold

These key lime pie overnight oats aren’t just tasty—they’re a full-spectrum breakfast in one jar. Rolled oats give you sustained energy. Chia seeds offer fiber and healthy fats. Greek yogurt or blended cottage cheese supplies protein and gut-friendly probiotics. And the citrus? It wakes up every spoonful with brightness.

Unlike sugary cereals or rushed toast, this breakfast keeps you full for hours without a crash. With just the right balance of creamy, tangy, and sweet, it’s easy to forget it’s actually good for you. I like to think of it as a tropical vacation layered in a jar.

If you’ve already tried my high-protein vegan meal prep, this fits perfectly into a breakfast slot that’s just as intentional—and just as fun.

The Role of Citrus in Digestion

Besides its vibrant taste, lime juice brings a host of benefits to the bowl. Limes are naturally alkalizing, rich in vitamin C, and supportive of digestion—making them ideal for first-thing-in-the-morning meals.

Here’s a quick look:

Lime Nutrition (1 fruit)	Benefit
19.5 mg Vitamin C	Boosts immunity, skin health
0g fat / low calorie	Perfect for weight-conscious meals

Just like the citrus pop in my green veggie lemon orzo salad, lime brings flavor with function.

The Ultimate Key Lime Overnight Oats Recipe

Ingredients That Make It Taste Like Pie

What gives key lime pie overnight oats that dessert-for-breakfast magic? It’s all about the balance—zingy citrus, creamy texture, natural sweetness, and a hint of crunch. You don’t need anything fancy—just real, nourishing ingredients:

• ½ cup rolled oats
• ½ cup Greek yogurt (or blended cottage cheese)
• ⅓ cup almond milk (or coconut milk for tropical vibes)
• 1 tablespoon chia seeds
• 1½ tablespoons maple syrup (or honey)
• Zest of 1 key lime (or regular lime)
• Juice of ½ lime
• Pinch of salt
• Optional: scoop of vanilla protein powder or collagen
• Crushed graham crackers for topping (or oat crumbles for GF option)

This mix hits that tangy-sweet-creamy flavor of classic pie—without the sugar crash.

You can also stir in a dollop of vanilla yogurt before serving for a layered pie-like effect. I love topping mine with a few graham cracker crumbs for crunch—it feels indulgent but stays light.

Method & Tips

To make it:

1. In a jar or bowl, combine oats, chia seeds, yogurt, milk, maple syrup, lime zest, juice, and salt.
2. Mix well to fully combine.
3. Seal and refrigerate for at least 4 hours—or overnight.
4. Before serving, give it a stir and top with crushed graham crackers and extra lime zest.

Optional add-ins: sliced banana, coconut flakes, or a swirl of whipped Greek yogurt for extra creaminess.

It keeps beautifully for 4 days in the fridge, making it ideal for weekly meal prep alongside savory staples like dense bean salad or baked feta chicken & quinoa bowls.

Storage, Variations & Make-Ahead Tips

Make Once, Eat All Week

The magic of key lime pie overnight oats is how beautifully they hold up—no sogginess, no mush, just spoon-ready creaminess every morning. Perfect for meal prep Mondays.

Here’s how to store them for peak freshness:

Storage Method	Shelf Life
Fridge (sealed jar)	Up to 4 days
Freezer (leave 1” room at top)	1 month (thaw overnight)

To avoid soggy toppings, store them separately and sprinkle just before serving. For even more breakfast variety, make 2–3 oat flavors at once.

Pair these oats with savory dishes like high-protein buffalo chicken dip for a complete prep strategy.

Variations Worth Trying

Once you master this base recipe, it’s easy to create spinoffs:

• Mango Lime Pie Oats – swap lime zest for mango puree + lime juice
• Key Lime Cheesecake – blend in a bit of cream cheese or cashew cream
• Low-Sugar Version – sweeten with stevia or mashed banana
• High-Protein Boost – stir in cottage cheese or vanilla protein powder

These flexible tweaks help the recipe suit your diet, flavor mood, or seasonal fruit supply. Like high-protein vegan meal prep, it’s a foundation that evolves with you.

FAQs About Key Lime Pie Overnight Oats

Conclusion

If you’ve ever wanted breakfast to feel like dessert—but without the sugar crash—key lime pie overnight oats are your new favorite. They’re zesty, creamy, and satisfying in every spoonful. Whether you’re chasing nostalgic pie flavor or just want a brighter start to the day, this recipe delivers.

These oats sit happily in my fridge next to jars of overnight Weetabix and prep bowls from high-protein vegan meal prep. And just like all my favorite meals, they’re simple, joyful, and made to share.

So go ahead—prep a few jars, swirl in that lime zest, and wake up to something worth savoring.

Want more recipes inspiration and to connect with like-minded home cooks? Join our vibrant Facebook group, Today’s Recipe, Tomorrow’s Favorite, and share your best brunch creations!

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