I sometimes think the good American restaurant is rarer now than a dozen cuisines you could name from around the planet, because the food industry put so much energy into canned and frozen products that destroyed its good name. Central Kitchen & Tap is a friendly place that makes lots of classics, including an incredible pot roast sandwich, the proper old ways.
'diner' on Serious Eats
Tuna melts are my kryptonite, which explains that whenever I'm at a diner I have to order one. The tuna melt at Palace Grill certainly looks like an impressive, golden, mountain mass of sandwich that you can't wait to get your grubby hands on.
There are still signs of Swedish Chicago in Andersonville, but they're getting fewer all the time. In fact, there's only one Swedish restaurant left in the area, a rustic little diner open for breakfast and lunch called Svea.