Great suggestion on the choco protein shake.
I bought one of those high powered blenders (OC folks can get discounts, check the websites), and wanted hubby to start with the GREEN shakes (full of Kale, etc..) but found that the chocolate/banana shakes were a great starter. I still make them once in a while, cuz now after several months and 'experiments' he can down a green shake! I've added fresh ginger for nausea, raisins or dried plums for iron (like the kale &/or spinach isn't enough). See my other posts for other nummie ingredients!