by Gut Check
Rules: To be eligible, you must leave a valid e-mail address (or Twitter handle or Facebook profile URL) in the comment-entry field. One guess per e-mail address. Employees of the restaurant in question and Riverfront Times are not eligible.
Update: Congrats to commenter k_dern, who correctly guessed that we dined at Lemon Grass (3216 South Grand Boulevard; 314-664-6702).
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