It's like, hey, I need to feed fifty people with only two of something! Just chop up some cabbage, dawg. Holy shit I'm always shocked by how much I get out of one head when I chop it up.
Pictured: two heads of cabbage, it's like 3 gallons, cucumber for scale
I typically dislike cabbage, but curtido (the garnish you get with a pupusa) is the shit.