Good solo breakfast & dinner near State & Rush?
In addition to all good suggestions let me add Big Bowl, informal and inexpensive, Cedar just east of where State and Rush come together. A Lettuce Entertain You restaurant, Pan Asian, delicioius stir-fries, cheerful atmosphere. This is where we take visiting family of all sizes, shapes, and conditions and everybody loves it.
re: Organ Leroy
For breakfast, the choice is obvious, just a few doors down from that intersection:
Original Pancake House
22 East Bellevue
Chicago, Illinois 60611
Don't miss the apple pancake!
For a great dinner, there are plenty of places within a 10 minute walk, but Quartino isn't one of them (it's at least 15 minutes away). Here are some that are within a 5 minute walk:
Hugo's (seafood) - www.hugosfrogbar.com
Gibson's (steaks) - www.gibsonssteakhouse.com
Le Colonial (Vietnamese) - www.lecolonialchicago.com
Pizano's (deep-dish pizza) - www.pizanoschicago.com
Cafe Spiaggia (Italian) - www.cafespiaggia.com
Pane Caldo (Italian) - www.pane-caldo.com
Edwardo's (deep-dish pizza) - www.edwardos.com
Cafe des Architectes (contemporary American/global) - www.cafedesarchitectes.com
And here are some more within a 10 minute walk:
Bistro 110 (French bistro) - www.levyrestaurants.com
NoMI (haute cuisine) - www.nomirestaurant.com
Saloon (steaks) - www.saloonsteakhouse.com
Giordano's (deep-dish pizza) - www.giordanos.com
Avenues (haute cuisine) - www.peninsula.com
Shanghai Terrace (upscale Chinese) - www.peninsula.com
The Lobby (contemporary American) - www.peninsula.com
Salpicon (Mexican) - www.salpicon.com
Kiki's (French bistro) - www.kikisbistro.com
Cafe Iberico (tapas) - www.cafeiberico.com
MK (contemporary American) - www.mkchicago.com
I don't normally pay attention to which places are particularly good for a solo diner. However, I've eaten solo at the Lobby in the Peninsula, and the waitstaff was amazingly accommodating and helpful. Avenues, also in the Pen, has a counter with half a dozen barstools in the main dining room facing the kitchen, which would be perfect for a solo diner. I also recently ate at Cafe des Architectes, in the Sofitel, and loved it, and observed that they too were very accommodating towards a solo diner nearby. I think hotel restaurants like these probably have an edge when it comes to serving solo diners, because they are more likely to have their hotel guests as solo customers.
I agree with the Original Pancake House recommendation. It's not the best of the OPH chain, but it's good enough. (I used to live within a hundred feet of the place and ate there quite often.)
The apple pancake is great but enormous. There are many other possibilities that offer a variety of textures and flavors. My favorites are the French crepes with strawberries, the Swedish pancakes with lingonberries, and the Forty Niners -- uniquely thin, stretchy, and chewy. The omelets are oven-baked and fluffy; the other egg dishes are cooked carefully; and the meats are high quality. (Good fresh orange juice, too.)
Chicago has many fine breakfast places, but OPH was always my favorite, especially the flagship of the small Walker Bros. subchain in Wilmette. It's all relatively expensive for breakfast but worth it.