Girlmoxie and VI, 
Thanks for the updates (and the props for MSP!).  There's enough good food to survive around here.  VI, I always love to see photo reviews -- set down those cards and get to work.
Hell's Kitchen is indeed a good breakfast spot.  Sticking with the original post (from a couple of years ago), I'm not sure the Sunday morning crowds/parking are ideal for families with three kids, and the prices can be a bit high for families on a budget.  But if you're reading this thread just for the title "Breakfast in Minneapolis", Hell's Kitchen is among the top options.
I would also throw in recs for a couple other places, only listing ones in Minneapolis proper, for breakfasts sans family criteria:
My-T-Fine Cafe on Bryant Avenue and 43rd in South Minneapolis.  Small place, good for lounging, great neighborhood spot flying under the radar.
Birchwood Cafe on E 21st St -- 
www.birchwoodcafe.com  Organic/vegetarian/vegan/local tilt but also good for meat-and-potatoes folks.  A must visit if you're into cycling at all -- they sponsor a serious racing team.
Colossal Cafe on 42nd at Cedar Ave in South Mpls.  Dinky little hole-in-the-wall with about 10 seats.
Hot Plate on Bloomington Ave and 52nd.
Our Kitchen at 36th and Bryant if you're a contractor, truck driver or auto assembler or dream of being one.  I have a soft spot for little greasy spoon diners -- this is the quintessential one in MSP.  Think eggs, hashbrowns, pancakes and a daily lunch special like hot open-faced turkey sandwich or meatloaf.  I challenge you to find anyone else who's said this much about this place.  I happened on it because I was WALKING up the street -- you'd likely miss it from your car (same goes for Colossal Cafe).
Maria's on Franklin Ave.  
www.mariascafe.com   The crown jewel there are the "Cachapas Venezolanas" (corn pancakes).  I'm also a sucker for refried beans and salsa in my omelet.
Cupcake at 3338 University Ave.  My favorite danish and croissants in town and a few good breakfast specials.  I like this place so much I think I've kind of crossed into honorary shill status.  If you're into home restoration and/or salvaged hardware, doors, fixtures, etc. you absolutely can not miss the place next to Cupcake called Art & Architecture.  It's like the Smithsonian of early American home fixtures and decor.   
www.artandarch.com  (web site doesn't do justice)