"In the place of the fowl a dish of haricot beans made its appearance--an enormous dish in which some bones of mutton that at first sight one might have believed to have some meat on them pretended to show themselves."

ARTFL online French dictionary gives just "bean" as translation for "haricot", so I wonder why the ttanslator
used the word haricot at all.

haricot
n.
5Fr < harigoter, to cut to pieces < ? MDu *harigod, sharp tool < haren, to sharpen + god, a tool6
1 a highly seasoned stew of lamb or mutton and vegetables
2 5altered (infl. by the stew) < ? Nahuatl ayecotli, bean6 [Chiefly Brit.]
a) KIDNEY BEAN b) the pod or seed of any of various other edible beans