
This creamy Strawberry Banana Protein Smoothie combines fresh fruit with protein powder for a nutritious and delicious drink that works perfectly for breakfast or a post-workout recovery. The natural sweetness from the fruits blends beautifully with vanilla protein powder while a touch of flaxseed adds essential omega-3s.
I first created this smoothie when looking for a quick breakfast option before early morning workouts. It has since become my go-to recovery drink that feels like a treat but delivers serious nutrition.
Ingredients
- Strawberries: 4 oz. Choose bright red berries with a sweet aroma for the best flavor and nutritional value
- Banana: 1 oz. Look for a slightly spotted banana for optimal sweetness and easier blending
- Vanilla protein powder: 1 scoop (1 oz.). Provides the protein boost while complementing the fruit flavors naturally
- Flaxseed: 1 teaspoon. Adds healthy omega-3s and a slight nutty flavor plus extra fiber
- Water: The amount determines your desired consistency, thin or thick
Step-by-Step Instructions
- Add ingredients to blender:
- Place all ingredients—strawberries, banana, protein powder, and flaxseed—into your blender. Using a high-speed blender like a Nutribullet works particularly well for creating a smooth texture without chunks.
- Add water gradually:
- Start with just a small amount of water, perhaps 1/4 cup, and then slowly add more as needed. This controlled approach prevents ending up with a smoothie that is too thin. The amount will vary depending on how thick you prefer your smoothie.
- Blend until smooth:
- Run the blender until all ingredients are completely incorporated, usually 30-45 seconds. You might need to stop and scrape down the sides if ingredients stick to the blender walls.
- Adjust consistency:
- Add additional water if needed, blending briefly after each addition until you reach your desired thickness. Remember that adding ice later will thicken it slightly.
- Serve appropriately:
- Pour into a glass over ice for a refreshing, cool drink or use frozen berries in the initial blend for a thicker, slush-like consistency that feels more like a treat.

This smoothie reminds me of the strawberry milkshakes my mom used to make on summer afternoons but with much better nutritional value. The protein powder I use is a grass-fed whey variety that dissolves completely without any chalky aftertaste.
Make Ahead Options
You can prepare smoothie packs by portioning the strawberries and banana slices into freezer bags. Add the flaxseed and store in the freezer for up to 3 months. When ready to make your smoothie, simply empty the contents of one bag into your blender, add protein powder and water, and blend. This preparation method saves time on busy mornings and gives your smoothie that thick, frozen consistency without diluting it with ice.
Nutritional Benefits
This smoothie delivers more than just protein. Strawberries provide vitamin C, antioxidants, and natural fiber while bananas contribute potassium and vitamin B6. The addition of flaxseed introduces essential omega-3 fatty acids, which support heart health and reduce inflammation. Unlike many commercial smoothies, this homemade version has no added sugars or preservatives, making it a truly healthful choice for anyone watching their sugar intake or following a clean eating plan.

Variations To Try
The basic recipe works wonderfully, but you can customize it to suit different dietary needs or flavor preferences. For a dairy-free version, use a plant-based protein powder. To increase the healthy fat content, add half an avocado or a tablespoon of almond butter, which also creates an even creamier texture. For extra fiber, throw in a handful of spinach—the flavor will be masked by the fruits, but you'll get additional nutrients. During summer months, frozen strawberries work beautifully and eliminate the need for ice completely.
Frequently Asked Questions
- → Can I use frozen fruit instead of fresh?
Yes, frozen strawberries and bananas work excellently in this smoothie. Using frozen fruit creates a thicker, colder consistency similar to a milkshake without needing to add ice.
- → What kind of protein powder works best?
Vanilla protein powder is recommended for this smoothie as it complements the fruit flavors, but unflavored, strawberry, or even chocolate protein powders can work depending on your preference.
- → Can I substitute the flaxseed with something else?
Absolutely! Chia seeds or hemp hearts make great alternatives to flaxseed, providing similar omega-3 benefits and a slight texture variation.
- → How can I make this smoothie thicker?
For a thicker consistency, use frozen fruit, reduce the amount of water, add ice cubes, or include a tablespoon of Greek yogurt or cottage cheese which also boosts protein content.
- → Can I prepare this smoothie in advance?
While best enjoyed immediately after blending, you can prepare smoothie packs by portioning all ingredients except liquid in freezer bags. Alternatively, blended smoothies can be refrigerated for up to 24 hours in an airtight container.
- → What can I add for extra flavor?
Enhance your smoothie with cinnamon, vanilla extract, honey, a splash of almond extract, or a handful of spinach for added nutrients without significantly changing the flavor.