These may seem a little too green , but my son does like veggies.. here it goes anyway..
Frozen raspberries
coconut water
frozen acai
spinach or kale (doesn't take much) and blends in nicely... the blueberry can help mask the green...
frozen blueberries
flax seeds...
chia seeds
hemp seeds....
also,
almond milk
cacao powder
banana
fresh raw almonds
cinnamon..
lemon/lime
greens (spinach/kale)
coconut water
flax seeds
celery
cucumber
again, we do like our veggies and don't mind an intense veggie taste..
but the above makes up what we put in most smoothies..
good luck