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Not every holiday can be found on a calendar—Shamrock Shake release day at McDonald’s has been one of mine since I was a little girl. Today’s Mint Smoothie is a healthy copycat version that’s creamy, fresh, and made with feel-good ingredients.

creamy mint smoothie in a glass

First and most importantly when we’re talking healthy things that are meant to taste like dessert: this mint smoothie recipe is legitimately DELISH.

  • It is an actually satisfying after-dinner treat or snack that just happens to be nutritious breakfast material too.
  • I feel great drinking this mint smoothie—its gorgeous green hue comes completely from its natural ingredients: avocado, spinach, and a heap of fresh mint leaves—and the sweetness and thickness I owe to frozen slices of overripe banana.
  • It tastes better than the Shamrock Shake (or at least the current version that McDonald’s now sells).
Chocolate mint smoothie with almond milk

Growing up, the Shamrock Shake (which is a milkshake, which is made with ice cream) signaled the coming of spring, St. Patrick’s Day (one of my favorite holidays), and my mom loved it too, so I could always convince her to take me.

I’m not sure if McDonald’s changed their Shamrock Shake beverage formula in recent years, or if it was just better left to my childhood memory, but the last time I ordered it was fairly traumatic.

I took a sip and what had McDonald’s done to my Shamrock Shake?

  • It had a decidedly funky off-flavor that I could only haphazardly identify as lime.
  • I really think that they’ve added radioactive material.
  • Has it always been so alarmingly bright?

I sat reflectively, eating the whipped cream off the top with my straw and wondering which had really changed—the Shamrock Shake or me.

I miss the Shamrock Shake terribly—not the current faux-mint monstrosity, but the perfect, refreshing Shamrock Shake of my youth.

Now I can only imagine how disillusioned I’d feel if I walked into a Chuck E. Cheese.

This McDonald’s episode has convinced me that some cherished childhood experiences are best left as pristine memories.

Now, I’ve got this banana mint smoothie to be my celebratory spring treat.

fresh mint smoothie being poured into a glass

5 Star Review

“This was absolutely delicious!! My husband and I were able to enjoy this shake in celebration of St. Patty’s Day yesterday. It has a wonderful minty fresh flavor and we love that it is full of beneficial nutrients.”

— Tracy —

How to Make the Best Mint Smoothie

Rather than accept defeat, I set out to make my own version of a healthy Shamrock Shake (that’s gluten-free with less calories) I could feel good enjoying at home.

The result is a rich, thick, and refreshing mint smoothie that is completely natural, something I feel even better about after reading over the McDonald’s ingredient list.

While berry flavors (like this simple Strawberry Smoothie and this Blueberry Smoothie) and tropical fruits (Strawberry Mango Smoothie; Kale Smoothie with pineapple) are among the most popular flavors for smoothies, mint is also one of the best.

  • Mint makes any smoothie ultra-refreshing (try adding it to this Watermelon Smoothie or this Mango Green Smoothie).
  • In the case of this faux Shamrock Shake, it makes it a tasty St. Patrick’s Day treat too.

The Ingredients

  • Bananas. Frozen bananas are a fantastic natural sweetener for smoothies, including this Date Shake. They also help make it thick and creamy.
  • Spinach. Not only do spinach leaves boost the nutrition content of this smoothie (hello, vitamins and iron), but they also play a role in its green color.
  • Avocado. Helps give the smoothie its green hue and makes it suuuuuper creamy. It’s one of my favorite ingredients to include in green smoothies (like in this Blueberry Banana Avocado Smoothie and this Cleansing Apple Avocado Smoothie).
  • Mint. The all-important cool, minty flavor comes from fresh mint leaves. The leaves also add to the green color.
  • Vanilla Almond Milk. I love using vanilla almond milk as the liquid for this recipe. The touch of vanilla is delicious with the sweet, minty flavors.
  • Peppermint Extract. Adds an extra punch of minty flavor. Be careful: a little goes a long way.
  • Sweetener. For an added touch of sweetness. Stevia, Truvia, honey, or maple syrup will all work well here.

The Directions

Spinach, avocado, bananas, and mint in a blender
  1. Add all the ingredients to a blender.
An avocado mint green smoothie in a blender
  1. Blend until smooth. ENJOY!

Chocolate Mint Smoothie Variation

Love mint chocolate? Turn this into a chocolate mint smoothie recipe by adding 1 to 2 teaspoons of cocoa powder or a scoop of chocolate protein powder, along with a small handful of chocolate chips or cacao nibs. Depending upon the potency of your chocolate, add a little more sweetener to taste.

A healthy mint smoothie made with avocado and spinach

Storage Tips

  • To Store. Cover and refrigerate the shake for up to 1 day. 

Meal Prep Tip

To make smoothie prep easier, peel and cut a handful of bananas in advance. Add the slices from two large bananas into a freezer-safe ziptop bag. Repeat with the remaining slices, creating portion-sized amounts of banana slices.

A mint smoothie made with frozen bananas, avocado, and mint

More Minty Treats

Recommended Tools to Make this Recipe

  • Blender. Perfect high-speed blender for making this copycat Shamrock Shake.
  • Measuring Cups. These are dishwasher-safe for easy cleanup.
  • Stainless Steel Straw. These reusable straws help make smoothies taste especially cool and creamy.

Although this mint smoothie does not taste identical to the perfect Shamrock Shake of my childhood, it is undeniably scrumptious and will be good to your body too.

Plus, after sampling our current Shamrock Shake alternative, I’m delighted to have this mint smoothie recipe in my repertoire to signal the arrival of spring!

Frequently Asked Questions

Can I Freeze a Mint Smoothie?

While this drink is best enjoyed the day it is made, you can freeze it. My preferred method is to pour the smoothie into the wells of an ice cube tray and place it in the freezer. Whenever you’d like to enjoy the smoothie, dump the ice cubes into a cup and let them thaw.

Could I Swap the Frozen Banana for Fresh?

Fresh banana will work in this recipe, but it is not as ideal, because the smoothie will not turn out as cool, thick, or have that creamy texture. If time allows, I highly recommend freezing the bananas slices before making the smoothie. If you do use fresh banana, add some ice cube slices to help make the smoothie frosty.

Will I Be Able to Taste the Spinach?

No, you shouldn’t be able to taste the spinach in this mint smoothie. With ingredients like avocado, bananas, mint, sweetener, and almond milk, the taste of the spinach leaves essentially fades into the background.

Can You Add Protein Powder?

Yes! Use a scoop of vanilla protein powder or your favorite one!

Can You Add Greek Yogurt?

I haven’t tried it for this smoothie but you might like this Greek Yogurt Smoothie with Strawberry and Banana! It has the classic creaminess of a classic smoothie!

Healthy Shamrock Shake {Avocado Mint Smoothie}

4.89 from 17 votes
A healthy mint smoothie inspired by the McDonald's Shamrock Shake. Thick, creamy, and made with only natural ingredients.

Prep: 5 minutes
Cook: 0 minutes
Total: 5 minutes

Servings: 1 large shake


  • 2 large bananas cut up and frozen
  • 1 cup firmly packed fresh spinach leaves
  • 3/4 cup unsweetened vanilla almond milk
  • 1/2 medium avocado
  • 1/4 cup firmly packed fresh mint leaves, about 25 leaves
  • 1/4 teaspoon pure peppermint extract
  • Sweetener of choice: 1 packet stevia or Truvia or 1 to 2 tablespoons honey or maple syrup
  • Whipped cream optional for serving
  • Shaved dark chocolate optional for serving


  • Place all of the ingredients (except the optional whipped cream and chocolate) into your blender and puree until combined.
  • Taste to adjust sweetener as desired. Enjoy immediately, topped with whipped cream and chocolate as desired.


  • TO STORE: Cover and refrigerate the shake for up to 1 day. 


Serving: 1shakeCalories: 447kcalCarbohydrates: 74gProtein: 7gFat: 18gSaturated Fat: 2gPolyunsaturated Fat: 3gMonounsaturated Fat: 11gPotassium: 1694mgFiber: 16gSugar: 34gVitamin A: 3612IUVitamin C: 46mgCalcium: 308mgIron: 3mg

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Erin Clarke

Hi, I'm Erin Clarke, and I'm fearlessly dedicated to making healthy food that's affordable, easy-to-make, and best of all DELISH. I'm the author and recipe developer here at and of The Well Plated Cookbook. I adore both sweets and veggies, and I am on a mission to save you time and dishes. WELCOME!

Learn more about Erin

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  1. Just made this Shamrock Shake for a March treat. It’s creamy, minty, and much tastier and satisfying than it’s commercial counterpart ;) Thanks again, Erin, for these healthy, yummy recipes!

    1. Teresa, I’m so happy to hear that you enjoyed this shamrock shake as much as I did. Thanks so much trying it and letting me know!

  2. I think this is even better considering that all the ingredients are all natural, and at the same time you enjoy doing it.5 stars

    1. Thanks so much Lenny! I actually just made it for myself again yesterday, and it was as wonderful as I remembered. I hope you enjoy it too!

  3. Erin, this was absolutely delicious!! Thank you for the recipe. Nick, my husband, and I were able to enjoy this shake in celebration of St. Patty’s Day yesterday with close friends, and then again this morning! It has a wonderful minty fresh flavor and we love that it is full of beneficial nutrients.  ❤️❤️❤️☘☘☘5 stars

    1. YAY Tracy! I’m so excited to hear that you enjoyed the smoothie. Thank you so much for taking the time to report back!

  4. I made modifications based on the need for low-oxyates for kidney stones. Replaced spinach with kale; replaced avocado with 1/2 cup coconut or Greek yogurt. Absolutely delicious!!!5 stars

    1. Kathy, I’m so glad to hear you enjoyed the smoothie! Thank you for sharing your tweaks and for taking the time to leave this nice review!

  5. This smoothie was delicious! My elderly dad said, “it tasted good” which coming from him is high praise. I made it using 2 tablespoons of dried mint leaves (I didn’t have any fresh leaves). I ate my leftover portion the next day using a spoon as it had thickened, it was like a yummy mint smoothie pudding. Thanks for sharing your wonderful recipes. I’m looking forward to trying another one.5 stars

  6. UNREAL!!! Just made this in my Vitamix…better than McD’s Shamrock Shake. I made a few changes as i didn’t have some ingredients. I skipped the avocado, peppermint extract (didn’t have any on hand), sweetener, whipped cream and chocolate. I did add 1 tsp ground flax. I’m addicted!! Thanks for sharing Erin :)5 stars

  7. FABULOUS!!! We divided this into two portions to cut on guilt. We also used beet leaves instead, it’s what we had.This will be a regular in our guilty pleasure. I can’t wait to try some more of your delicious healthy ideas.5 stars

  8. I had a similar thing happen to me with the smoothies they used to have at Costco. I tried it after months of almost nothing but whole foods, and it tasted like chemicals.

    I didn’t have any Peppmint extract, but I used 1 1/2 cups packed spearmint, so it still had plenty of mint taste. I forgot about it using avocado, so I used chia seeds (my usual go-to) instead, and used dates instead of maple to sweeten it. I also added in some zucchini for volume, since we had this as our breakfast. It was delicious! It needed a little more dates than I had expected, but that probably had to do with the increased veggies.5 stars

  9. I didnt have frozen bananas so used regular and added ice cubes and half a cup of light vanilla yogurt to thicken up. It was creamy and delicious. My 4 and 9 yr old loved it too.5 stars

  10. We tried, the texture was Airy smooth like mousse. We used all the ingredients exactly and fresh. We even doubled the almond milk to make it drinkable however it was still thick. It was avacado strong. However we will not be making again I can say it was okay.4 stars

    1. Hi Tammy, I’m sorry this recipe wasn’t to your liking. Myself (and others) enjoy this recipe, so I really wish it would of been a hit for you too!

  11. I tried this the morning after I read the recipe and I loved it! It was a great little breakfast before my early morning Saturday yoga class! Perfect.5 stars

  12. This was way more delicious than I would have thought given such healthy ingredients. Erin you have outdone yourself again!5 stars

    1. Hi Leah! I’ve only tested the recipe as written, so you’d be experimenting. If you decide to play around with it, I’d love to hear how it goes!

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