Yes, FRIJOLES is a Scrabble word!

Letter values in Scrabble US: F 4, R 1, I 1, J 8, O 1, L 1, E 1, S 1.

Is it a valid word?

FRIJOLES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

the common bean plant grown for the beans rather than the pods (especially a variety with large red kidney-shaped beans)

Also: kidney bean.