How much do crocodiles eat?
It's only a partial answer, but a Nile crocodile can eat up to half its body weight at a sitting, according to National Geographic. Since few freshwater fish weigh half as much as a crocodile, we can probably assume these croc feasts occur when they're able to ambush ungulates (e.g. zebras and antelope).

So one guess is that a crocodile feasts on ungulates about fifty times a year, though its normal diet is fish. Of course, I could be wrong - perhaps five fish caught in the space of an hour are considered a full meal as well.

I never knew crocodilians ate fruit. (The link you provided doesn't mention fruit, by the way.) But this article says they can eat "large quantities" of fruit, suggesting they're looking for more than supplemental vitamins. But who knows? It sounds like scientists don't yet know much about fruit-eating crocodilians.