I would have recommended the roast chicken at Alex's Chimis, Cuban at Miami Restaurant or El Oriental, a burger at Costello's, or a sandwich at Cafe Ula.
Vee Vee and Ten Tables are a higher price point but a good value.
358 Centre St, Boston, MA 02130
763 Centre St, Jamaica Plain, MA 02130
Head to Centre Street at the intersection of Burroughs. Start walking up and down, you'll see quite a few places. For sushi/Korean hit JP Seafood. For Cambodian/Thai go to Wonder Spice Cafe. Kinda crunchy/hippie - check out Centre Street Cafe. There are a couple of Indian food places on the same block (between Burroughs and Eliot). Purple Cactus Burrito is not exemplary Mexican but at the same time, it isn't bad. There's definitely more in JP but without knowing your tastes, this is the area of JP with the greatest concentration of offerings. Enjoy.
Centre Street Cafe
669 Centre St, Jamaica Plain, MA 02130
Wonder Spice Cafe
697 Centre St, Jamaica Plain, MA 02130
Based on my single brunch experience, I do not understand the appeal of Centre St Cafe at all. I wanted to love it - sweet service, some local ingredients, clearly a neighborhood favorite - but the food was sub-mediocre, and pricey for what it was. Terrible, near-rotten fruit was served with a decent but tiny waffle. The bites I tired of other dishes were just as bad. Never again.
Sticking with Centre St, the sandwiches at City Feed don't inspire poetry, but they're solid and fresh. The one time I had some soup there, it was good. I really love the pizza at Same Old Place--if you're into the NYC corner slice style it's my favorite in Boston.