MAC N CHS! PHX
I had the Mac n Cheese at Zinc Bistro. It was a long time ago, and I don't remember much about it. I think it must have been good, not great, otherwise, I would have remembered.
I've had the Green Chili Mac n Cheese at Pischke's Paradise, which, theoretically, should be the same as the Roaring Fork. I liked the sauce, but, the pasta was mushy. Maybe just a poor execution on that night.
I like the Mac n Cheese at Stax Burger Bistro. It is also of the "more runny" sauce variety. I think Stax tends to be a bit inconsistent, generally speaking.
In my opinion the best Mac n Cheese I've had from the freezer section of a grocery store is the O Organics Organic Three Cheese Macaroni And Cheese Dinner - 20 Oz offered by Safeway. I make it in the microwave, and it comes out very similar to a baked casserole.
Pischke's Blue Ribbon
7217 E 1st St, Scottsdale, AZ 85251
Stax Burger Bistro
4400 N Scottsdale Rd, Scottsdale, AZ 85251
Believe it or not, my wife and I drive all the way from N. Scottsdale to 27th Ave and Northern to get the Mac and Cheese at Bobby Q. I know it's now "gourmet" but it's the best we've found......and we've tried them all! Nothing quite as good as hot, bubbly mac-n-cheese with your ribs! We actually went last week and brought an extra container home to have in the fridge.
8501 N 27th Ave, Phoenix, AZ 85051
I've had the mac n cheese at both Zinc and Roaring Fork. Both are quite good, but my all-time favorite in the Phoenix Metro Area is Tarbell's. "Mark's Mom's Mac n Cheese" at Tarbell's is creamy with a breadcrumb crust -- very nice. It was an entree at the Old Barmouche restaurant, but when Mark Tarbell closed Barmouche, the Mac n Cheese was so popular that it was transplanted to the menu at Tarbell's where it lives on as a side dish (albeit one big enough to be an entree if paired with a salad).
Your wording "pick some up" suggests that you may actually be looking for mac n cheese to go rather than to eat in a restaurant. If so, have you tried Dish or the FOODBAR in Scottsdale? They seem like the kind of places that might have it prepared and ready to sell by the pint or pound.
3213 E. Camelback Road, Phoenix, AZ 85018
15034 N Scottsdale Rd, Scottsdale, AZ 85254
4800 N. Scottsdale Road, Scottsdale, AZ 85251
8977 N Scottsdale Rd, Scottsdale, AZ 85253
7114 E Stetson Dr, Scottsdale, AZ 85251
11675 North 136th Street, Scottsdale, AZ 85259
As soon as I saw this title, I immediately thought of Barmouche and Mom's Mac and Cheese. I didn't realize that it Mark brought it over to Tarbell's. I would sit at the bar for that mac and cheese alone!
I'm a purist about mac and cheese, but I hear that the lobster m n' c at Mastro's is something to write home about.
Zinc Bistro serves what they call "mac and cheese," which I'm sure is not your standard, everyday mac and cheese (I believe it includes multiple higher-end cheeses and ham or proscuitto). Roaring Fork (Scottsdale), I believe serves green chile mac and cheese. Sorry I can't attest to either of these, but both restaurants are fantastic, so it's a safe bet that these are stellar options.
Somewhat similar (also in Scottsdale), I've had a delicious, albeit extremely rich, pasta with marscapone, walnutes, and gorganzola at Casa Mia. Not macaroni, but a nice variation, and I'd bet they substitute upon request.