Sunday late lunch--upscale mexican or asian?

[mousse]

sorry that Frontera isn't open on Sunday. Looking for a place that would have been like Chilpancingo or Frontera. Not impressed with Salpicon. Anywhere between downtown and the north shore. Any ideas?

[gordeaux]

I am also not impressed with Salpicon, and do like Frontera quite a bit.
A few might be slightly off the path you are seeking, but I'd Consider:

Fonda Del Mar Open 4-9 on Sunday
3749 W. Fullerton
Website is http://www.fondaonfullerton.com/
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Sol de Mexico (You might REALLY like this one
)3018 N Cicero Ave
Chicago, IL 60641
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Not sure how far north you'd like to go, BUT:
La Casa de Isaac
431 Temple Ave
Highland Park, IL 60035
847 433-5550
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Also, Adobo Grill:
http://www.adobogrill.com/oldtown/ind...
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La Oaxaqueña
3382 N. Milwaukee
773-545-858
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Tepatulco might be the best option depending on what time you're looking for. They close between lunch and dinner - check for times.
Tepatulco
2558 N. Halsted
773-472-7419
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Asian:

For Thai, I'd do Tac Quick. Sheridan and Irving. My top Thai place in the city, but that's my opinion. I love this joint.
Tac Quick
3930 N Sheridan Rd
Chicago, IL 60613
[phone]
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Is Indian up your alley? If you don't need a fancy atmosphere, I'd be at Khan's BBQ on Devon in a heartbeat. Tiffin for a somewhat fancier atmosphere.

[waterrabbit]

For an upscale Indian buffet downtown - try India House at 59 W. Grand - here's the link:

http://www.indiahousechicago.com/

Very nice buffet with a great atmosphere