I bought it with the intention of doing green smoothies, but I have yet to start that
I have done a few soups that only I seem to like, hummus... but the thing I most frequently make is mango smoothies, it's my whole family's favorite (except me, I prefer to eat my calories

It's just a cup of frozen mango chunks, a cup of milk, and a little bit of sugar.
I have a toddler who is a really picky eater and for a while didn't even drink milk - I made a lot of smoothies for him with yogurt, fruit, sometimes spinach.
I have also done almond milk - just blend 1/3 cup of raw almonds and a cup of water. You can strain it, but you don't have to. It is nice if you add a little vanilla and a little sweetness.