Bricktown brewery - there are a few of them, one of my go tos for burgers, best nachos HANDS DOWN ive ever had PERIOD - I prefer the chicken, some like the pork though.
R Bar - best old fashioned in town, great brunch, fantastic food, great scenery on the weekends (across the street from Lulu Lemon)
Neighborhood Jam - Brunch place, use Yelp to reserve a seat or the wait can often exceed 2 hours on the weekends
Andolinis Pizza - great pizza joint with wonderful all you can eat lunch specials on pizza, pasta and salad
Fassler Hall - they make wonderful sausage, incredible bourbon and beer selection, and on Mondays, all the sausages are half off.
I would have said Mondos, but you already ate there... amazing clam chowder
Just about any BBQ joint is good here and portions are huge
No shortage of good food here, which is evident by the size of many of Tulsas inhabitants.