First milkshakes, then burgers. One wonders how the "make the villan food" idea would have been rehashed if the fifth seaon had happened. A villan with a passion for French Fries, perhaps? Or maybe Onion Rings?
Interesting thing I just noticed: all the little Digis in this episode talk about "Mommy" and "Daddy." What do they know about parents? They were hatched out of eggs impersonally spit out by the Digiworld, but born of Mom and Dad Digimon.
(In fact, the Digimon in 01 actually have to ask what parents are.)