Super Spinach Banana Smoothie (High-Protein)
This refreshing spinach banana smoothie is a great way to get extra leafy greens into your day – and I promise, you can’t taste it!

You could call this a Hulk smoothie – it’s that green – and the vibrancy comes from the spinach, but don’t be put off just yet!
This peanut butter banana smoothie has got to be at the top of my easy breakfast ideas list and it’s fab as a post-workout snack too.
I know, drinking something green feels wrong. But it’s oh so right, trust me.
This smoothie is super quick to make and full of healthy ingredients, so let’s take a look at what makes this spinach banana smoothie recipe so awesome.
Ingredients
This is a super simple smoothie with only 4 ingredients that you can easily find at your grocery store so let’s go!
Banana
Ripe bananas are best for a smoothie as they have a natural sweetness and make it extra creamy.
You can use a fresh banana, or if you don’t have any ice, a frozen banana can work wonders to keep that smoothie coooool.
Spinach
This healthy green smoothie needs a handful of fresh spinach leaves. I use baby spinach (and the grown-up kind is fine too!).
It will give it a lovely color but don’t worry, the other ingredients disguise any odd taste you might imagine it has.
Peanut butter
High in protein, peanut butter is my secret ingredient in making a smoothie that’s both tasty and filling. Stick to the smooth kind though so you don’t get any bits stuck in your teeth.
Liquid
I chose unsweetened soy milk to make a vegan protein smoothie but you could use another non-dairy milk or dairy milk of your choice, or just plain water if you want to keep the calories down.
Obviously, milk over water is preferable to keep the creaminess going and create the perfect smoothie (though water keeps it a low calorie smoothie recipe).
How many calories are in a spinach banana smoothie?
The best thing about healthy smoothie recipes is that they are a great option for the whole family.
This smoothie has 310 calories and 15 grams of protein.
Here is an overview of the other nutritional facts:
Health benefits
If you want a delicious smoothie that’s full of health benefits you’re in the right place!
Bananas and spinach contain a lot of dietary fiber. My favorite feature of fiber-rich food is that it makes you feel full for longer.
You won’t get so hungry straight after, which helps you to snack less on whatever it was you promised you wouldn’t.
You’re also going to get a load of iron and potassium. Potassium helps fight against increased blood pressure and stops muscle weakness.
Iron, a key nutrient, is used by the body to create myoglobin which provides oxygen to the muscles – essential if you’re working out.
A spinach protein smoothie is also great after a workout.
With the 16g of proteins from the spinach and peanut butter, an 80kg (176lbs) person already takes in more than 20% of the daily recommendation – essential for keeping fit and strong.
If you’re looking to increase your protein intake why not download your Free 7-Day High Protein Meal Plan? And if you need more, there is a weekly plan for you too – aid your weight-loss or muscle-gain goals today!
How to make this easy spinach banana smoothie
Time needed:Â 3 minutes.
Now there really isn’t much to this so don’t worry it’s not complicated in the slightest!
- Take a blender
Preferably a high-speed one.
- Put together
Throw in a banana, a handful of spinach, natural peanut butter, and your liquid of choice.
- Close and blend
And the last thing to remember (and this is an important step) is to put the lid on before you press the button or you might get a free facial!
(If you’re still not sure how to make this creamy smoothie, take a look at the recipe card below.)
Spinach banana smoothie FAQs
Here are your top smoothie questions answered!
It’s always best to make your smoothie fresh if you can so the simple ingredients don’t separate. The great thing is this one only takes 3 minutes so you can literally make it just before you run out the door!
If you’re at home you can put your smoothie into a glass, but if you’re transporting it an insulated bottle is great to keep it nice and cool.
You don’t need to serve anything with it they are great just on their own, but if you want to add extra vitamin c to your healthy breakfast then added fresh fruit would be a great choice.
Of course, it’s ok to drink a spinach smoothie every day. My spinach banana smoothie recipe is full of nutrients and protein so it’s a really healthy option.
But it’s best to eat a balanced diet as well and not just stick to smoothies alone.
No, blending spinach doesn’t destroy nutrients. In fact, blending up leafy greens like spinach and kale is a really great idea to help you get even more goodness in your diet if you don’t like eating it otherwise.
Recipe variations
You could of course mix up the ingredients in any way you fancy in this recipe however it may not have the same nutritional value as the original one.
- Different fruit – You could choose mango, fresh strawberries, or even avocado (although this may increase the calories)
- Different veg – Try kale as an alternative green.
- Different protein – Of course, if you can’t have peanut butter you could try almond butter as an alternative.
- Different milk – If you don’t like soy, try cashew milk or almond milk instead.
More recipes
If you love this recipe then I think you love these too!
- Vegan Blackberry Smoothie
- Fresh & Minty Pineapple and Spinach Smoothie
- Blueberry Banana Protein Smoothie
Equipment
Ingredients
- 1 banana
- 1 handful spinach (approx. 60g)
- 1 tbsp peanut butter
- 1 ¼ cup soy milk (or your fave milk)
Instructions
- Easy as hell – throw everything together!1 banana, 1 handful spinach, 1 tbsp peanut butter, 1 ¼ cup soy milk
- And blend!

NOTES
Nutrition
I really hope you love this creamy spinach banana smoothie I think it’s just delicious! Let me know in the comments what is your favorite smoothie. Have you tried any of the other recipes mentioned above?
If you are hungry for more (or is that thirsty?) then take a look at this amazing collection of 19 Natural High Protein Smoothies!




I absolutely HATE, HATE!! spinach but I am trying to eat healthier so I gave this a tried and OMG!!! Saved my life! Love this smoothie!! Its AWESOME! Thanks!
Hahaha excellent! It sounds like mission accomplished then, Dayana. Really happy to hear it!
What could be a substitute for peanut butter
Oof toughy! The peanut butter is really good for bringing the spinach flavour down a notch. I guess it depends on your reason for no peanut butter (allergies or taste etc). Could another nut butter be an option?
Do you think it would be possible to use one table spoon of cacao powder instead of the peanut butter?
Hi Helene – for sure, yes! The peanut butter masks the spinach quite well, but I’m sure the cacao powder will do the same :). I’d deffo give it a go!
I tried this it is amazing. I like the way it is, I don’t like too sweet things anyway. I was bit hesitant to add peanut butter, I have never had peanut butter in my smoothies. I add it , and taste was amazing. I made it for my mentor today (she told she is feeling tired), she also loved it!!! good food makes our days!, thank you so much for sharing this.
Ah, Billi, that’s great! Very happy to have helped and really glad you enjoyed the recipe! Actually, I haven’t eaten/drunk this smoothie for a while now, but you just reminded how tasty it is. I think I have everything I need at home except spinach – I’ll have to grab some after work!
I’m not seeing how this could be that much protein?
You’re right, Allison! The smoothie clocks in at around 15g of protein – not 17g. I double checked. You’ll have to use soy milk though – not oat or rice milk!
Hi
Can you please tell,
how much grams of spinach should i put in ?
Hi, about 100 grams is perfect 🙂
Totally love this smoothie and is tasty. I was unsure of having any green smoothies cuz i eat tons of junk food and hate vegetables but i’m trying to make my life go back on track and this helped so much. I’ve been missing out on a lot of tasty healthy food. Thank you so much for this recipe 😀
That’s awesome!! Really glad it’s helping you get back on track, Kaz. Smoothies for the win 🙂