TMZ has learned, the stars of the new "Avengers" flick have become so obsessed with an Asian restaurant located near their set in Albuquerque, New Mexico -- they've been hitting the place up constantly ... as much as four times in a single week.
It's called StreetFood Asia -- and here's who orders what ...
Chris Hemsworth -- chicken/beef satay and "Beijing Street shrimp"
Mark Ruffalo -- Jjampong ... a spicy Korean soup, filled with seafood
Samuel L. Jackson -- some boring vegan crap
As for who tips the most -- we're told that honor goes to Hemsworth, who leaves between 30-40% at each meal. BY ODIN'S BEARD!