Our family favorite for Sonoran dogs in Tucson is the El Guero Canelo
https://www.elguerocanelo.com/on Utah and 12th St. It might be the original shop, from which they have expanded to five or six other places, including up in Phoenix, now. The actual address is 5201 S 12th Ave, Tucson, AZ 85706, which is within striking distance of the airport, the Air & Space Museum, etc.
A place that is open 365 days a year is Kababeque
https://www.kababequeindiangrilltucson.com/menu, and hence suitable for holiday visitors to Tucson who want to eat a traditional Thanksgiving vindaloo dish or Christmas chicken tikka masala, etc. It is at 845 E University Blvd #185, Tucson, AZ 85719, and if the weather is nice, you can carry it south across the street to the little park at Main Gate Square just to the west.
If you are hungry for Balkan food and have a strong appetite for lilac-colored interiors, Chef Alisah's will do you right. The Cevapi
https://alisahrestaurant.com/menu.html, which is a sort of giant bread sandwich featuring a dozen or so protruding sausages, is fun for the whole family. The rest of the menu has many other fine and delicious things, but your kids will definitely remember the Cevapi, as will your gustatory organs and digestive system. Really good coffee, as well, at 5931 N Oracle Rd, Tucson, AZ 85704.
Miss Saigon
https://www.misssaigontucson.com/ just south of the Aloft Hotel on Speedway and Campbell features pretty fantastic chicken wings. Not Buffalo Wings, but sort of fried chicken wings with a crispy coating that isn't breaded? It is at 1072 N Campbell Ave, Tucson, AZ 85719, and the traditional Vietnamese offerings are good too, but the wings are surprising. We discovered them a decade ago when one of the girls on my daughter's basketball team wasn't as excited about Vietnamese food as we were, so she ordered (and promptly Bogarted the entire dish of) 12 of them.
North on Campbell from the hotel are both a Prep & Pastry and a Blue Willow that I would recommend as well for consistent dishes of higher-than-average quality that are central.
And finally, no visit to Tucson is complete without giant pancakes et al at Bobo's - 2938 E Grant Rd, Tucson, AZ 85716.