1-the burgers at Smokejumpers and Hungry Bear. Hungry Bear does FRIES! Lucky Fortune Cookery does GF Teriyaki Bowls.
2-By 'sit down' I assume you mean table service? Carnation cafe's bacon cheeseburger. Tesoro chicken at BB, anything at Steakhouse 55. I had an excellent 'off menu' club sandwich at Storytellers. Good pasta dinner at Wine Country. Best by far was dinner at Club33 if that's a possibility for you.
3-'cafeteria style'. enchilada plate at Zocalo, BBQ ribs at Flos.
I'm a pretty picky eater so there are many, many more options out there for people who have a 'broader palate' than I do.