MPLS Breakfast downtown or NE Tomorrow
If Nordeast is really an option I vote for the Modern Cafe.
Since I live so close to Calhoun Grill, I'll put in a plug for it. Not just because of my close proximity but because I really like the Cajun breakfast: Hashbrowns, fried eggs, fried bell peppers and onions, hollandaise - you know, health conscious diet food. My brother and my close friend go for the waffles and my brother (a coffee aficionado) got a very good cafe au lait there recently.
3220 W Lake St, Minneapolis, MN 55416
Yep, its still open and its still SO GOOD! The only thing I'm going to say is get there early. They are only open until 2 and there is always a very long wait...like 45 minutes...but its TOTALLY worth it. If you don't want to do that, theres a place called Muffaletta by Como Zoo that is great and kind of similar. In uptown, I love the breakfast/brunch options at French Meadows Cafe.
This recent visitor liked Hell's Kitchen:
Other ideas: Moose & Sadie's (not sure of their hours on Sunday), Spoonriver, or Colossal Cafe. See these threads:
Breakfast places in Twin Cities
Best Pancakes MSP
MSP: Best breakfast