I know what you are thinking - cauliflower in a smoothie - yuck! However, please believe me when I say you really can’t taste the cauliflower and you get all the cruciferous vegetable benefits. I buy packs of frozen cauliflower rice and keep in the freezer as a useful and very easy meal side. If you haven’t got vanilla protein powder then use your normal protein powder and add 1 teaspoon of vanilla extract for the vanilla flavour. I often freeze cut up bananas that are going brown in the fruit bowl and they are great for adding to smoothies.