Breakfast is the best meal of the day, and there's absolutely nothing wrong with eating "breakfast food" for any of your meals no matter what time of the day it is.
Diners are amazing, where else can you go where the server knows your name, are open late, open early, have breakfast, ice cream, burgers, and you can get it all for cheap! One website says they found the best diner in the Land of Lincoln and their menu backs up their claim.