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Protein Smoothie Recipe
Isla Marie

Protein Smoothie

A thick, filling protein smoothie designed to function as a real meal—not a sugary drink. Made with protein powder, banana, nut butter, and oats, this smoothie delivers balanced energy, staying power, and a smooth, creamy texture in minutes.
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Prep Time 5 minutes
Cook Time 0 minutes
Total Time 5 minutes
Servings: 1 large smoothie
Course: Breakfast, Post-Workout, Snack
Cuisine: American
Calories: 420
Ingredients Equipment Method Notes

Ingredients
  

  • 1 cup milk or unsweetened plant milk
  • 1 scoop protein powder whey or plant-based
  • 1 ripe banana
  • 1 tablespoon peanut butter or almond butter
  • ¼ cup rolled oats
  • Ice cubes optional

Equipment

  • Blender
  • Measuring cups
  • Spoon

Method
 

  1. Pour milk into the blender first to help with smooth blending.
  2. Add protein powder and rolled oats.
  3. Break the banana into pieces and add to the blender along with nut butter.
  4. Add ice if using.
  5. Blend on high for 30–45 seconds until completely smooth.
  6. Adjust thickness with more milk if needed and serve immediately.

Notes

  • Add spinach or chia seeds for extra nutrients without affecting flavor much.
  • If using plant-based protein, you may need slightly more liquid.
  • For meal prep, freeze ingredients (except liquid) and blend fresh.