Avocado Spinach Smoothie with Chia Seeds and Banana

Some mornings you need something that actually holds you together until lunch. Not a sugary juice that spikes your blood sugar and leaves you ravenous by 10am, but a real, filling, genuinely nourishing breakfast. This avocado spinach smoothie with chia seeds and banana does exactly that. It is thick, creamy, and deeply green in the best possible way, loaded with healthy fats, plant-based fibre, and a solid hit of protein from Greek yoghurt and chia seeds. One glass and you feel like you have actually eaten a proper breakfast.
What makes this version healthier than most green smoothies out there is the intentional combination of ingredients. The avocado brings heart-healthy monounsaturated fats that slow digestion and keep you full for longer. Fresh baby spinach adds iron, folate, and vitamins A, C, and K without making the smoothie taste like a salad. Frozen banana provides natural sweetness and a wonderfully smooth texture while also delivering potassium and prebiotic fibre. The chia seeds are tiny but mighty. Just one tablespoon delivers around 5 grams of fibre and 2 grams of protein, and they thicken the smoothie into something that feels more like a meal than a drink. Unsweetened almond milk keeps calories low while still giving the blender enough liquid to work with, and a generous spoonful of plain Greek yoghurt boosts the protein content significantly without adding unnecessary sugar. A small squeeze of fresh lemon juice brightens everything up and helps prevent the avocado from turning brown if you are blending ahead.
The technique here is simple but worth getting right. Always add your liquid to the blender first. This protects the blades and ensures a smoother blend from the start. Layer in the spinach next so it gets pulled down into the liquid, then add the frozen banana chunks, the avocado flesh, the chia seeds, and the Greek yoghurt on top. Blend on high for a full 60 seconds. Green smoothies need that extra blending time to fully break down the spinach leaves so you get a silky texture rather than a gritty or stringy one. If your blender struggles, add a splash more almond milk and keep going. Taste it before pouring. Some days a frozen banana is sweeter than others, and you might not need anything extra at all. If you do want a touch more sweetness, a teaspoon of raw honey or a couple of pitted Medjool dates works beautifully.
This smoothie fits into almost any healthy eating approach. It is naturally gluten-free, dairy-free if you swap the yoghurt for coconut yoghurt, and works brilliantly as a post-workout recovery drink thanks to its balance of carbohydrates and protein. One serving comes in at around 290 calories with 12 grams of protein and 9 grams of fibre, which is genuinely impressive for something you can make in under five minutes. Batch prep is easy too. Portion the dry ingredients and frozen banana into zip-lock bags and keep them in the freezer. On busy mornings, just tip a bag into the blender with your liquid and yoghurt, blend, and go. It is the kind of breakfast habit that makes a real difference to how you feel all day.
Ingredients
- 240 ml unsweetened almond milk (or oat milk for a creamier texture)
- 60 g plain non-fat Greek yoghurt (use coconut yoghurt to make vegan)
- 40 g fresh baby spinach (loosely packed, about 2 large handfuls)
- 1 medium ripe banana (frozen in chunks works best for thickness)
- 50 g ripe avocado flesh (about half a small avocado)
- 1 tablespoon chia seeds (white or black both work)
- 1 teaspoon fresh lemon juice (helps preserve colour and adds brightness)
- 1 teaspoon raw honey (optional, only if extra sweetness is needed)
- 3 cubes ice (skip if using frozen banana)
Instructions
- 1
Pour the almond milk into your blender first. This protects the blades and helps everything blend smoothly from the start.
Cold almond milk straight from the fridge makes the smoothie refreshingly chilled without needing as much ice.
- 2
Add the Greek yoghurt to the blender, followed by the fresh baby spinach leaves. Press them down gently so they sit in the liquid.
Adding spinach early, before the heavier ingredients, helps the blender pull it into the liquid and prevents leaf fragments from being left behind.
- 3
Add the frozen banana chunks, avocado flesh, and chia seeds on top of the spinach.
If your banana is not frozen, add 3 to 4 ice cubes instead to achieve the same thick, cold consistency.
- 4
Squeeze in the fresh lemon juice and add the raw honey if using.
- 5
Secure the lid and blend on the highest setting for a full 60 seconds. Stop halfway if needed to scrape down the sides, then continue blending.
A full minute of high-speed blending is key to breaking down the spinach completely. Shorter blending can leave a slightly gritty texture.
- 6
Taste the smoothie before pouring. Adjust sweetness with a little more honey if needed, or add a splash more almond milk if it is thicker than you prefer.
- 7
Pour into a tall glass, sprinkle a few extra chia seeds on top if you like, and serve immediately.
Drinking it straight away gives you the best texture before the chia seeds absorb more liquid and thicken it further.
Nutrition per serving
290kcal
Calories
12g
Protein
32g
Carbs
13g
Fat
9g
Fibre
14g
Sugar
180mg
Sodium
Pro Tips
- ✓
Freeze ripe bananas in advance. Peel them, slice into chunks, and store in a zip-lock bag in the freezer. They last up to 3 months and make every smoothie thicker and colder.
- ✓
Use very fresh, young baby spinach rather than mature spinach leaves. Baby spinach has a milder flavour and blends more smoothly.
- ✓
If you want extra protein without adding calories, stir in a tablespoon of unflavoured pea protein or hemp protein powder before blending.
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A high-powered blender like a Vitamix or NutriBullet Pro gives the smoothest result, but any blender works as long as you blend for the full 60 seconds.
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Do not skip the lemon juice. It prevents the avocado from oxidising and keeps that beautiful bright green colour for longer.
Frequently Asked Questions
Variations
- •
Tropical Boost
Add 50g of frozen mango chunks along with the banana for a sweeter, tropical flavour that pairs beautifully with the avocado and spinach.
- •
High Protein Green Smoothie
Add one scoop of unflavoured or vanilla pea protein powder to increase the protein content to around 25 grams per serving. Ideal as a post-workout breakfast.
- •
Ginger and Turmeric Green Smoothie
Add a small thumb of fresh ginger and a quarter teaspoon of ground turmeric before blending for an anti-inflammatory twist with a warm, slightly spicy kick.
- •
Matcha Green Smoothie
Stir in half a teaspoon of ceremonial grade matcha powder for an extra antioxidant boost and a gentle caffeine lift without the coffee crash.
Substitutions
- •Almond milk → Oat milk, coconut milk, or plain water (Oat milk adds a creamier texture and slightly more calories. Coconut milk makes it richer and higher in fat. Water is the lowest calorie option.)
- •Greek yoghurt → Coconut yoghurt or silken tofu (Coconut yoghurt keeps it dairy-free and vegan. Silken tofu adds protein while keeping it neutral in flavour and fully plant-based.)
- •Fresh baby spinach → Frozen spinach or kale (Kale is slightly more bitter but adds extra calcium and vitamin K. Frozen spinach works just as well nutritionally, just thaw slightly before using.)
- •Banana → Frozen mango chunks (Mango provides similar natural sweetness and creamy texture. It is lower in potassium but higher in vitamin C.)
- •Chia seeds → Ground flaxseed or hemp seeds (Ground flaxseed provides similar fibre and omega-3 content. Hemp seeds add more protein and have a slightly nuttier flavour.)
- •Raw honey → Maple syrup or 1 to 2 Medjool dates (Maple syrup is fully vegan and has a lower glycaemic index than honey. Medjool dates add extra fibre alongside the sweetness.)
🧊 Storage
Store any leftover smoothie in a sealed glass jar or airtight container in the refrigerator for up to 12 hours. Shake or stir well before drinking as separation is normal. Not suitable for freezing once blended.
📅 Make Ahead
Prepare freezer smoothie packs by portioning the banana chunks, spinach, avocado chunks, and chia seeds into individual zip-lock bags. Freeze for up to 4 weeks. On the morning you want the smoothie, tip one bag directly into the blender, add the almond milk and yoghurt, and blend as normal.


