berry watermelon smoothie with a strawberry on the side landscape photo

This Mixed Berry Watermelon Smoothie is so simple and easy to make but so refreshing and delicious. Made in under 3 minutes with just 4 ingredients- the ultimate quench thirsting drink! (Vegan + GF)

triple berry watermelon smoothie with a strawberry on the

Yes, I know it’s almost the end of summer but this smoothie that I made with random left overs on this super humid and hot day is just so incredibly delicious I HAD to share it. It would have been selfish of me not to.

triple berry watermelon smoothie ingredients

My boyfriend (Eric) requested a smoothie after our super intense leg workout and all I had left in the fridge was some watermelon. Mind you, it was the part of the watermelon that isn’t super sweet, you know near the rind. I also dug up a bag of berries I’ve been freezing all summer long which included some blueberries, black berries and raspberries. Threw that into the blender with a pinch of salt and it was good, but it was missing creaminess. I threw in a frozen banana and half a block of left over soft tofu and blended it up again. HOLY MOLY. Adding tofu to smoothies NEVER fails to impress me. Not only does it make smoothies super duper creamy, but it also gives it an extra protein boost (WIN!).

berry slushy in a cup top shot

I drove to Costco just to pickup a couple more watermelons. And it would be a lie if I said I didn’t have this smoothie every. single. day- and I’m not even that much of a smoothie person. It’s THAT good. The watermelon makes is uber refreshing, the berries give it a bit of tartness and the banana adds a subtle sweetness. The tofu is the dude that ties it all together with it’s ability to make it super creamy.

And… it didn’t stop there. I went back AGAIN just to grab a few more watermelons. But this time, I froze half. Freezing the watermelon beforehand turns this smoothie into a creamy slushy- it’s incredible. Plus, it’s just another way for me to hoard watermelon so I can still have this smoothie even when watermelons are out of season (win #2).

TIP: you can also just slice off the parts closer to the rind that no one really enjoys eating anyways and freeze them in chunks. A really smart way of freezing watermelon (and any fruit for the matter), is to freeze them on a baking tray or in serving portions so that you don’t have to try and break apart huge pieces of fruit.

mixed berry watermelon smoothie with watermelon on the side

More delicious vegan drinks to love!

watermelon slushy in a cup top shot

If you recreate this Mixed Berry Watermelon Smoothie recipe let me know how you liked it by leaving a comment and rating below or by tagging me on Instagram @Okonomikitchen, I love seeing all of your tasty recreations!
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Mixed Berry Watermelon Smoothie

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 3 reviews

  • Author: Lisa Kitahara
  • Total Time: 3 minutes
  • Yield: 1 serving 1x


This Mixed Berry Watermelon Smoothie is so simple and easy to make but so refreshing and delicious. Made in under 3 minutes with just 4 ingredients- the ultimate quench thirsting drink! (Vegan + GF)


Units Scale
  • 1/2 cup water (125 ml)*
  • 2 cup fresh watermelon, cubed (300g)**
  • 1/3 cup tofu (80g)***
  • 1 cup mixed frozen berries (125g)
  • 1 small banana, frozen (120g)
  • pinch of salt


  1. Add all the ingredients into a blender in the order listed. Blend until smooth & creamy!


  1. Any liquid will work in this smoothie such as non-dairy milk, coconut water or even fruit juice!
  2. For extra deliciousness/slushy-ness, freeze the watermelon chunks before hand. You MIGHT need a tad more liquid or a tamper to get it going. 
  3. Tofu can be substituted with non-dairy yogurt or coconut cream 
  4. Nutritional Information Disclaimer: Nutrition information is a rough estimate calculated on an online tool (Cronometer).
  • Prep Time: 3 minutes
  • Category: Beverages
  • Method: Blending
  • Cuisine: North American


  • Serving Size: 1 Serving
  • Calories: 318g
  • Sugar: 44.5g
  • Sodium: 173mg
  • Fat: 3.6g
  • Saturated Fat: 0.2g
  • Unsaturated Fat: 0.4g
  • Trans Fat: 0
  • Carbohydrates: 67.4g
  • Fiber: 7.3g
  • Protein: 10.6g
  • Cholesterol: 0


strawberry watermelon smoothie in a cup pinterest text

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About Lisa

I'm Lisa, a home cook, recipe developer and founder of Okonomi Kitchen. Here, you'll find a mix of classic and modernized Japanese recipes, and creative, plant-forward meal inspiration using seasonal ingredients. I hope to share more about Japanese cuisine and culture through food and recipes.

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