You Know How the Boss Loves Your Delicious Gelatin Desserts

In the remade Battlestar Galactica series, at a certain point when their food supplies were running low they filled their holds with algae from this one planet. At the time it reminded me of a couple of scenes from The Simpsons. First, one in which, as an alternative to meat at Homer's barbecue, Lisa offered gazpacho:

Good news, everyone! You don't have to eat meat! I've got enough gazpacho for everyone. [Crowd murmurs.] It's tomato soup, served ice cold! [Crowd laughs out loud.]

Then one in which a busful of schoolchildren ended up trapped on an island and were getting all Lord of the Flies up in each other's faces:

Hey, if a boar can survive here, there must be a source of food! Look, he's licking slime off that rock! That's what he's been eating — slime! And there's enough slime for all of us!

For whatever reason this all came to mind again a few moments ago, but this time I also remembered it coming up in Red Dwarf:

Look, ever since that refrigeration unit packed in we've had to live off a few pathetic handfuls of moss and fungi scraped off passing asteroids.

I don't think there's anything particularly significant about this; algae and gazpacho and slime are all...well, slimy and gross, and as such a good way to represent dire dietary straits. I wonder if such emergency rations ever made an appearance on Star Trek?