You can freeze Yoplait Yogurt to eat as a frozen yogurt. It won't be the same consistency as a regular frozen yogurt but it really is quite yummy. I make this as a treat for myself and my kids on occasion.
It won't be the same consistency but it is good! You can make little yogurt pops out of it if you buy the individual yogurt cups then put a popsicle stick in the top. Let it freeze the pull back the top - so good!