Giordano's for deep dish pizza. Some of the best breakfast food is found at one of three Nookie's (Nookie's, Nookie's Too and Nookie's Tree). The Giordano's and Nookie's Tree can be located in the Lakeview neighborhood close by Wrigley Field (Giordano's is about three blocks east of Halsted on Belmont) and Nookie's Tree is on Halsted about two blocks north of Belmont). For dessert, nothing beats Marie's. Margie's serves up to 25 scoop sundaes and has been run by the same family for 50 years (located in Wicker Park neighborhood---forgot what street). I lived in downtown Chicago for two years, trust me on this.