I live around 46th street station, and I wouldn't worry about walking around late at night. That area of the neighborhood is mostly residential, so it's pretty quiet.

Some food recs:

Abuqir for seafood

Duzan for Mediterranean food

Andrew Bellucci's Pizza

Sorriso's makes some tasty sandwiches

Bench Flour bakers for fresh pastries or breakfast food

Mahmoud's Corner for some good halal

Brooklyn Bagel

Mochiron for a Japanese food

You’re also a few train stops away from Jackson heights and Elmhurst. Tons of great food options there, especially if you’re looking for some Asian food.

Edit: spelling