1. In a blender, add the unsweetened almond milk, fresh spinach leaves, ripe avocado, plain Greek yogurt, chia seeds, almond butter, vanilla extract, and stevia (if using).

2. Blend all the ingredients until smooth and creamy. If desired, add a few ice cubes to make it colder and thicker.

3. Taste the smoothie and adjust the sweetness or thickness according to your preference. You can add more stevia or almond milk if needed.

4. Pour the smoothie into a glass and serve immediately.

Enjoy your delicious Low Carb Smoothie with Spinach and Avocado!