Healthy Shamrock Protein Shake

Healthy Shamrock Protein Shake

This healthy shamrock protein shake is perfectly creamy, naturally sweetened, and made with just a handful of nutritious ingredients.

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Get your mint fix with this healthy shamrock shake recipe!

I have a confession: I’ve never had an official Shamrock Shake. 

However, my husband has had his fair share of the St. Patrick’s Day-inspired treat and can vouch for the tastiness of this healthier milkshake alternative.

While I fully support the occasional indulgence, drinking something that contains 86 grams of sugar, all from artificial ingredients, just isn’t worth it to me.

Especially when I can make my how healthy shamrock shake recipe at home.

glass of healthy shamrock protein shake

Why you’ll love this healthy green smoothie

  • Delicious way to sneak in a serving or two of leafy greens.
  • Flavored with real mint – but can be made with mint extract if needed!
  • High in protein, making it perfect for breakfast or a post-workout treat.
  • Super thick and creamy.
  • Naturally sweetened.
glass of healthy shamrock protein shake

Ingredients Used to Make a Healthy Shamrock Protein Shake

Ingredients for shamrock protein shake
  • Oat milk: My go-to brands for oat milk include Califia Farms Unsweetened and Planet Oat Original. However, you can also make your own. Or, feel free to use almond milk or cow’s milk. 
  • Fresh mint: I like to use the real stuff when I can, but if you don’t have fresh mint (or you want a super strong mint flavor) you can also use mint extract.
  • Spinach: The key to making this healthy milkshake green without food dye is spinach. I like using fresh baby spinach, but you can also freeze spinach in an ice cube tray to make making green smoothies even easier. I like using Pampered Chef’s Herb Freezing Tray
  • Frozen banana: This ingredient cannot be substituted as the frozen banana makes this smoothie both creamy and sweet. I recommend slicing your banana and storing them in a zip-top bag before freezing as they’ll blend easier. 
  • Vanilla extract: I recommend using a pure vanilla extract to give the smoothie a vanilla ice cream flavor. Or, if you want to go all-out, you could also use fresh vanilla bean or vanilla bean paste.
  • Vanilla protein powder: I like making healthy shamrock protein shakes to help keep my fuller for longer. Some ones that I’d recommend include Less Naked Whey Vanilla or Owyn Smooth Vanilla (plant-based). 
  • Salt: Just the tiniest pinch will help round out the sweetness of this shake.

How to Make a Healthy Shamrock Shake 

  1. Place spinach, fresh mint, and oat milk in a blender. Blend on high until greens are fully broken down. It should look like green milk without any leafy pieces.
  2. Add remaining ingredients and blend until smooth and creamy. Taste and adjust as needed.
  3. Pour into a glass and enjoy! 
Adding protein powder to blender

Tips for making a Healthy Shamrock Protein Shake 

  • Blend the greens with milk first to help avoid having small pieces of spinach or mint in your drink. 
  • If using an extract, use mint, not peppermint extract.
  • USe frozen bananas, not fresh. Trust me, the taste and texture won’t be right! 
  • Use a protein powder that you really like the taste of. I like Less Naked Whey Vanilla, but for a plant-based option, Owyn and Aloha can be good options. 

For more tips, be sure to check out my guide on making healthy smoothies! 

More healthy green smoothie recipes to try 

If you tried this healthy shamrock shake or any other recipe on the blog let me know how you liked it by leaving a comment/rating below! Be sure to follow along on Pinterest, Instagram and Facebook for even more deliciousness!

Shamrock protein shake pin

Healthier Shamrock Protein Shake

Skip the drive through and make this healthy shamrock protein shake instead! It’s perfectly creamy, naturally sweetened, and made with just a handful of nutritious ingredients.
Prep Time5 mins
Course: Breakfast, Drinks
Cuisine: American
Keyword: Green Smoothie, Healthy Shamrock Shake, Protein Shake
Servings: 1
Calories: 230kcal
Author: Kelli


  • ½ cup unsweetened oat milk
  • Leaves from 1-2 sprigs fresh mint (or 1/2 tsp mint extract)
  • 1 cup spinach
  • 1 frozen banana
  • ½ tsp vanilla extract
  • 1 scoop vanilla protein powder (see notes in post for brand recs)
  • Pinch salt


  • Place spinach, mint, and oat milk in blender. Blend on high until smooth and no flakes of spinach or mint are visible.
  • Add in frozen banana, vanilla extract, and vanilla protein powder. Blend on high until smooth and creamy. If you want it even thicker, add in ½-1 cup of ice cubes and blend until smooth.
  • Pour into glass, grab a spoon (my preference) or a straw, and enjoy!


Nutrition for entire recipe: 230 calories, 4 g fat (1 g saturated fat), 40 g carb, 5 g fiber, 16 g sugar, 13 g protein
*nutrition calculated using Planet Oat Milk and 1 scoop Aloha Vanilla Protein Powder.

Add a comment


  • Tara | Treble in the Kitchen AvatarTara | Treble in the Kitchen6 years ago

    Love the addition of FRESH mint to get that crisp and refreshing flavor. I have had a Shamrock Shake, but it’s been YEARS…so I really don’t even remember if it was good or not!

    • The Healthy Toast AvatarThe Healthy Toast6 years ago

      Thanks Tara!

  • Mandy Enright AvatarMandy Enright6 years ago

    I’ve never done the Shamrock Shake thing either, because like you, I couldn’t tell you the last time I was in a McDonalds (except to use a restroom while on road trips!). I see my friends posting about them all the time – they sound pretty scary, while you’re sounds like a Shamrock Shake I can truly enjoy!

    • The Healthy Toast AvatarThe Healthy Toast6 years ago

      Thanks Many! You’ll have to give it a shot 😉

  • About Kelli McGrane Headshot

    I’m Kelli MS, RD, and my mission is to prove that eating healthier doesn’t have to be complicated or restrictive. Follow along to learn more about food and cooking, with an emphasis on breakfast and sweet treats!

    About Kelli McGrane Headshot

    Welcome to The Healthy Toast!

    Here you’ll find realistic healthy recipes designed by a registered dietitian with your busy lifestyle in mind.

    Whether you’re a busy professional or new mom, the goal of The Healthy Toast is to provide you with the recipes and nutrition info you need to live your healthiest life, even when life gets crazy. As I’m a firm believer in a whole-foods, non-diet approach, I hope my website shows that good nutrition doesn’t have to be complicated or restrictive. 

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