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A sweet, tart, and creamy Easy Key Lime Pie Protein Smoothie is the perfect healthy breakfast or clean eating snack to satisfy your sweet tooth!

A close up of an easy key lime pie smoothie in a glass jar with limes at the side

So this idea originally came about when I was dreaming of GREEN foods for St. Patty’s Day. But guess what? It’s not soooooo green (unless you count the little green flecks of lime zest sprinkled throughout!).

I briefly considered adding a few drops of food coloring to make it really festive, but then I decided EWWWW…no, thanks. Instead I settled for a less vibrant and easy key lime pie smoothie (that’s still bursting with flavor!). Ya with me?!

A glass jar filled with an easy key lime pie smoothie and two straws

Whether it’s green, white, or somewhere in between…this protein smoothie is such a delicious way to celebrate the EVERY day (not just a holiday). It’s full of protein and vitamin C to help keep you healthy, strong, and fueled. BUT, with a sweet graham cracker crumb topping and a smooth, creamy base, it’s tasty enough to curb those real pie cravings! Snack time? Dessert? Check. Check.

An overhead shot of an easy key lime pie smoothie topped with lime slices and crumbs

I often rely on the convenience of packaged, organic, wholegrain graham crackers for the boys and myself, but if you have a few spare minutes (and really, that’s all you need!), you can even make your own Homemade Whole Wheat Graham Crackers with one bowl and a couple of pantry staples (no mixer required!).

Grab my recipe HERE — they can be crumbled on top of the smoothie, but they’re also just a really great make-ahead snack or addition to breakfast on-the-go. Totally freezer-friendly, too!

A side shot of a glass of key lime pie smoothie topped with two straws and lime

And be sure to go with some fresh lime here (not the stuff in a bottle) for maximum taste and quality! Bonus points if your grocery store actually sells KEY limes!! Can’t beat what Mother Nature gave us!

The Best Thing About This Easy Key Lime Pie Smoothie?

  • It takes no more than 5 minutes to make
  • It’s high protein so it’s perfect for breakfast
  • It’s under 200 calories per serving
  • It’s zesty and fresh
  • It tastes like dessert

A close up of cut limes used to make an easy key lime pie smoothie

Looking for other delicious protein smoothies? Try these:

If you’ve tried this Easy Key Lime Pie Smoothie or any other recipe on The Seasoned Mom then don’t forget to rate the recipe and leave me a comment below! You can also follow me on Facebook, Twitter, Instagram and Pinterest to see what I’m getting up to.

Key Lime Pie Protein Smoothie

4.58 from 7 votes
Prep: 5 minutes
Total: 5 minutes
Servings 1 serving
Calories 168.6 kcal
A creamy, zingy and delicious key lime pie smoothie that's a healthy clean eating snack or breakfast to satisfy your sweet tooth.


  • 1 scoop vanilla protein powder I used Quest Vanilla Milkshake Protein Powder, which has 100 calories per scoop
  • ¾ cup Almond Breeze unsweetened almond milk Original or Vanilla flavored
  • ¾ cup freshly-squeezed lime juice
  • Zest from 1 lime about 2 teaspoons
  • Pinch of salt
  • 1-2 cups ice
  • For topping: ½ of a wholegrain graham cracker crushed {See note below for a homemade version!}


  • Add first 6 ingredients to blender and combine! Top with graham cracker crumbs and serve immediately.


If you want to keep this really healthy, you can even make your own homemade wholewheat graham crackers, which only require one bowl, no mixer, and a handful of pantry staples. Grab the recipe HERE!


Serving: 1shakeCalories: 168.6kcalCarbohydrates: 19.3gProtein: 23.5gFat: 2gPolyunsaturated Fat: 0.4gMonounsaturated Fat: 1.1gCholesterol: 15mgSodium: 436.2mgPotassium: 212mgFiber: 1.5gSugar: 3gVitamin A: 90IUVitamin C: 54.5mgCalcium: 250mg
Keyword: dessert smoothie, healthy key lime pie
Course: Breakfast
Cuisine: American
Author: The Seasoned Mom


Hey, I’m Blair!

Welcome to my farmhouse kitchen in the foothills of Virginia’s Blue Ridge Mountains. Inspired by local traditions and seasonal fare, you’ll find plenty of easy, comforting recipes that bring your family together around the table. It’s down-home, country-style cooking!

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  1. Gayle @ Pumpkin 'N Spice says:

    You make the best smoothies, Blair! I’ve never even thought to make a lime smoothie before, so I’m loving this delicious combo. And even better that there’s protein in it, too. Just what I need to get going on this Monday morning!

    1. Blair says:

      Thanks, Gayle! I LOVE my smoothies, so I’m constantly dreaming up new ways to keep them interesting. 🙂

  2. Bethany @ Athletic Avocado says:

    Key lime pie smoothie sounds and looks heavenly! You’re killing it with the protein smoothie game a always!

    1. Blair says:

      Thanks, Bethany! It’s definitely heavenly. 🙂

  3. Stephanie | The Foodie and The Fix says:

    5 stars
    Wow, I can’t remember the last time that I had a slice of key lime pie and it’s one of my favorites! That being said, I have all of the ingredients for this delicious smoothie on hand, and this is about to go down! I absolutely LOVE finding healthier alternatives to sinful sweets 😉

    1. Blair says:

      Yay, Stephanie! I’m so glad that you’ll try it! Super easy, right?! And it tastes dreamy. 🙂

  4. Megan @ Skinny Fitalicious says:

    Oh Blair this looks so good and those straws are adorable too!

    1. Blair says:

      Thanks, Megan! It’s one of my newest favorites…and I cannot remember where those straws came from! Target or World Market, probably. 🙂

  5. Jen | Baked by an Introvert says:

    This is a delicious sounding smoothie, Blair!! Key lime pie is my favorite and I love that you turned it into a healthy protein drink!

    1. Blair says:

      Thanks, Jen! You make the amazing pies, and I’ll put the flavors in liquid form! Hah! 🙂

  6. rachel @ athletic avocado says:

    This smoothie looks totally amazing! I love key lime pie, perfect way to make it for breakfast 🙂

    1. Blair says:

      Breakfast, lunch, snack, dinner…whenever! I totally agree, Rachel! 🙂

  7. Robyn @ Simply Fresh Dinners says:

    5 stars
    You make fantastic smoothies, Blair, and this one goes to the top of the list – wow! Lime just makes everything better, doesn’t it?

    1. Blair says:

      Thanks, Robyn!! I’m smoothie obsessed, and this is definitely a favorite!!

  8. GiGi Eats says:

    5 stars
    OHHHHHH MY FRIG! whaaaaa?! I need this! In fact I really need ALL of the smoothies you have made, IN MY MOUTH!

    1. Blair says:

      Thanks, GiGi! I just need to add some cauliflower like you!! 🙂

  9. Chrissa - Physical Kitchness says:

    Oh I am SO glad you didn’t add the food coloring. This smoothie is so beautiful as is, and it totally screams key lime pie. That is my hubby’s fav dessert so I know he’ll love this! Weekend treat!!

    1. Blair says:

      Yep, perfect weekend treat for the key lime pie LOVER! 🙂 Thanks, Chrissa!

  10. Beth says:

    My boyfriend loves key lime pie . We made this recipe after a hard workout and with our last scoop of protein in our house. The drink came our way to sour and neither of us could drink it. We tried to mix in more almond milk to drowned out the sourness. Nothing worked!

    1. Erica Scruggs says:

      Same here. Waaaay too sour. Is 3/4c lime juice a typo??

      1. Blair says:

        Hi, Erica! Did you use the Quest brand vanilla protein powder that I recommend? That’s the only powder that I’ve used to test the recipe, and I find that the creamy, sweet vanilla powder cuts the lime juice so that it’s not too sour at all. I don’t know how it would work or taste with other brands or other amounts of powder.

    2. Janelle says:

      Ya I used vanilla protein powder too and it is so sour. I added more and it helped a bit but i wasn’t trying to double my calories. Also took me about 10 dang limes to get that much juice.

  11. Sarah says:

    Please don’t give your toddlers protein powder with sucralose in it.

  12. Julie says:

    I used Hemp powder because I didn’t want any powders with artificial sweeteners. Added yogurt. It’s alright. Very tart. I’d use less lime next time.

    1. Blair says:

      Hey, Julie! Yes, the unsweetened hemp powder and the yogurt would make it incredibly tart. That’s why I like the vanilla flavored protein powder, because it adds sweetness and creaminess to balance the lime. 🙂

  13. Leanne Long says:

    2 grams of protein does NOT make a protein smoothie. Sounds wonderful but the protein is practically non-existant.

    1. Blair says:

      You’re right — that wouldn’t be much protein! 🙂 That was a typo — it should say 23.5 grams of protein. I updated the nutrition panel to correct it. Thanks for letting me know!

  14. Kathy says:

    Why not add some spinach or other healthy greens in it to make it a pretty shade of green and add fiber and antioxidants too! I love to “hide” greens in smoothies. Drinking them is so much easier than eating them, LOL!

    1. Blair says:

      Great idea, Kathy!

  15. Randi says:

    5 stars
    Love it! I’m excited to recommend your smoothies to the happy.ly community!

  16. JB says:

    2 stars
    tastes too much like lemonade and not like key lime pie. and i added 1/4 cup up lime juice.

  17. Paula says:

    5 stars
    Omg! Delicious! I used Gauge girl vanilla protein powder. This is the best recipe, ever! Thank you!

    1. Blair says:

      Thanks, Paula! 🙂

  18. Heather says:

    this seems like a lot of lime juice. should i really add a full 3/4 cup lime juice? and shouldn’t i use key lime juice?

    1. Blair says:

      That’s how I like it, but you can always start with less lime juice and see how it tastes. You might prefer less, but you can always add more if necessary. Key lime juice is great if you have access to it!

  19. Lisa says:

    5 stars
    I Love this smoothie. I only put 1/2 cup of fresh squeezed key lime juice and it was perfect. Still tart but that’s what I loved about it. I’ll definitely be making this again.

    1. Blair Lonergan says:

      Thanks, Lisa!

  20. Amy says:

    This sounds delicious but I am allergic to nuts. Can I substitute milk for the almond milk? Any other suggestions? Would love to try it.

    1. Blair Lonergan says:

      Yes, absolutely! Any variety of milk will work well. Hope you enjoy it, Amy. 🙂