“Too many” kinda sounds right to my ear because beans is plural, but the second logically seems right because its served by volume and is not ‘countable’ as ordinary (non-destroyed) beans might be.
“Too many” kinda sounds right to my ear because beans is plural, but the second logically seems right because its served by volume and is not ‘countable’ as ordinary (non-destroyed) beans might be.
Because refried beans are as you mention no longer countable, I think “refried beans” should be taken all together as a singular compound noun rather than the word “beans” modified by an adjective. So then “too much refried beans” is the correct way to say it because it isn’t plural.