Alas I found it--way cooler than Jamba Juice, I might add--and the whining stopped as soon as Catcher heard "smoothie place" and saw the toy trucks scattered about the front lawn.
Scout: simple smoothie, strawberry banana
Catcher: simple smoothie, mango orange
The driver: green monster -- broccoli, peanut butter, coconut water, banana, spinach
(sounds weird, but you don't even taste the green stuff)