Around Armory (643 Park Ave 10065):

El Porron [Spanish, Tapas/Small Plates]
1123 1st Ave [61st St]
https://www.yelp.com/biz/el-porron-new-york
http://www.elporronnyc.com/home
-> open to 10 PM


Agra Restaurant [Indian]
807 Lexington Ave [62nd-63rd Sts]
https://www.yelp.com/biz/agra-restaurant-new-york
-> no website

Match 65 [French, burgers]
29 E 65th St [Mad-Park]
https://www.yelp.com/biz/match-65-new-york-2
https://www.match65.com/
-> expensive


Spice Saigon: Vietnamese Grill & Noodles
1237 1st Ave [67th St]
http://www.findmeglutenfree.com/biz/spice-saigon/4591425087340544
http://www.spicesaigonnewyork.com/
https://www.yelp.com/biz/spice-saigon-new-york
-> open to 10:30 or 11 PM
-> not very authentic, more Chinese

EJ's Luncheonette
1271 3rd Ave [73rd]
http://www.findmeglutenfree.com/biz/ejs-luncheonette/5163342210007040
http://www.ejsluncheonette.com/
-> late night
-> everything is on griddle. fellow answering the phone was clueless

Lilli And Loo
792 Lexington Ave [61st-62nd Sts]
http://store7.geomerx.com/lilliandloo/index.cfm
http://www.findmeglutenfree.com/biz/lilli-and-loo/225001

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Further up (around Ballroom Society):

Dos Toros Taqueria
1111 Lexington Ave [77th-78th Sts]
http://www.findmeglutenfree.com/biz/dos-toros-taqueria/5270219190697984
https://www.yelp.com/biz/dos-toros-taqueria-new-york-3
https://www.dostoros.com/locations#upper-east-side
https://www.dostoros.com/menu
-> Like Chipotle

Candle Cafe
1307 3rd Ave [74th-75th Sts]
http://www.findmeglutenfree.com/biz/candle-cafe/218001
http://www.candlecafe.com/cafe-east.html
-> vegetarian only

Candle 79
154 E 79th St [at Lex]
http://www.findmeglutenfree.com/biz/candle-79/217001
-> vegetarian only

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Around Cooper-Hewitt

Beyoglu [Turkish, Mediterranean]
1431 3rd Ave [at 81st St]
http://www.findmeglutenfree.com/biz/beyoglu/43795170
https://www.yelp.com/biz/beyoglu-new-york
-> open to 11 pm on weekends
-> 6 has 9 minute headway on Sat evenings
-> M15 is the 2nd Ave bus, M101 is Lexington bus


BareBurger
1681 1st Ave [at 87th St]
http://www.findmeglutenfree.com/biz/bareburger/5561280979009536

Hu Kitchen
1536 3rd Ave [86th-87th Sts]
http://www.findmeglutenfree.com/biz/hu-kitchen/5382996871086080
-> food bland and expensive

Bluestone Lane
2 E 90th St
http://www.findmeglutenfree.com/biz/bluestone-lane/5286728207695872
https://bluestonelane.com/cafes/upper-east-side/
-> brunch only, no dinner

Noglu
1266 Madison Ave [90th-91st Sts]
http://www.findmeglutenfree.com/biz/noglu/5306423237410816
http://www.noglu.fr/en/new-york/bakery/
-> bakery/cafe only. dedicated GF. closes 7pm

Bonjour Crepes & Wine
1442 Lexington Ave [at 94th St]
http://www.findmeglutenfree.com/biz/bonjour-crepes-and-wine/5842225433411584
http://bonjourcrepesandwine.com/
-> crepes and waffles only. omelette crepes an option. open to 10PM