Lunch around Good Sam Hospital?
Not much aside from Pacific Dining Car (steakhouse), Subway, La Parrilla (Mexican), and an "Asian" food takeout place (corner of Witmer & 6th) within 2 blocks.
3 blocks away (by LAPD Rampart), you've got a bunch of mini-malls packed with Central American food and donut stores.
Downtown is not too far away, though (but, you need wheels to reasonably get there)...
Pacific Dining Car
1310 W 6th St, Los Angeles, CA 90017