i used to do the dextrose(glucose) maltodextrin + whey, i've also done the waxy maize + bcaas
now I'm doing whey isolate, or even whey isolate mix concentrate with 60-70 grams carbs from rice chex = 3 cups or so
you'll notice that the more whole food you have, t he better you feel esepcially when you are cutting. really unsatisfying to just down a shake that has the equivalent of a lot of food. rice chex are high glycemic, no fiber, only 2 grams of sugar (sugar is part fructose which is not the best pwo). Sure it may not be as fast as the liquid versions i used to do, but I'm gaining mass and doing very well on this new PWO.
the only time i woudln't recommend whole food after a workout is if you have a crappy diet to begin with. If you constantly eat high glycemic carbs and garbage that messes with your insulin (in other words you are insulin INsensitive), then whole food is not going to give you the insulin jolt you need PWO.
I eat all low glycemic carbs except for my PWO, so relatively speaking, rice chex causes a serious insulin spike.