Yes, GNOCCHI is a Scrabble word!

Letter values in Scrabble US: G 2, N 1, O 1, C 3, C 3, H 4, I 1.

Is it a valid word?

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

(Italian) a small dumpling made of potato or flour or semolina that is boiled or baked and is usually served with a sauce or with grated cheese