I really like the Frontier, right across from UNM. It resembles a giant cafeteria in some ways, but I love the huevos rancheros with green chile, and I hear the carne adovada is tasty too. Good tortillas, too. It's cheap and non-fancy, catering to college students.
I also had a good lunch at the Chama River Brewing Company off the I-25 last time I was in town. The building looks discouragingly corporate, but the sandwiches and beer were good, as was the service.
2400 Central Ave SE, Albuquerque, NM 87106
Wow - that leaves room for lots of suggestions.
Mad Max has great BBQ and NM [on SR 528 near Intel, in Rio Rancho].
Ranchers Club in ABQ Hilton - great food
In Nob Hill [near UNM] - Scalo's; Il Vicino; Kelly's; O'Neills, Flying Star
On Westside - Whisque Mesquite Grill on Montano and Coors
Range Cafe on Wyoming.
Here is a link with lots of ideas:
Albuquerque is a big, spread out city. Where are you going to be? Can you narrow this down a little??