I have purchased Kewpie at Hyvee before. 7$ for it, likely better deals at an Asian market.

I can recommend Don Tono on North Glenstone. Small hole in the wall, amazing Mexican food with Elotes on the cob or served in a cup.

Friend of mine works at Alamo and told me the tipping system is pooled. Waiters are not allowed to accept tips individually and the 18% gratuity is not shared with the waiters. This is second hand info so take what I say with a grain of salt.