I put them in the freezer the second I come back from weigh in and just take one out 40 mins or so before I want to eat it, cut the top open and dig in with a spoon. YUM!!
I haven't tried strawberry as the only tetra flavour I like is the chocolate one, but i can't see why not. It will probably taste a bit like the (fake) strawberry flavour ice cream that my children are partial to!