I don't like to suggest places I haven't eaten, but have heard of this place. Not even sure it is still open, When we were in LL in April, I thought someone said it had closed?? http://thelunamansion.com/
Good luck. Los Lunas is not known for the great quality nor choice in food. ABQ is close by and worth the time and effort IF you want a decent New Mexican dinner. A favorite of the locals is El Patio located at 142 Harvard Dr SE #268-4245. Not fancy and cash only.