Dairy-free: Look for vegan powdered milk (which is often made from coconut milk) as an option.
Nut-free: Skip the almonds. You can double the hemp seeds if you'd like.
Chocolate Protein Powder: Add 2-3 tablespoons cup cocoa powder to the mix. You will want to add 1-2 tablespoons honey or maple syrup to the smoothie (or very sweet fruit) to balance the flavors.
Peanut Butter Protein Powder: Add 1/2 cup powdered peanut butter, such as PB Fit, to the mix.