Tips on attracting rodents for my dog to eat?

My ex-husband was a complete slob. He was the type to eat half of a bag of potato chips, fall asleep on the couch, and spill them all over the floor. As you can imagine, in the five years we lived together before I kicked his sorry ass to the curb, we got a ton of mice. So many mice, in fact, that we had to stop buying dog food because our dog was eating so many mice that any more food would make him obese.

Well, now that my husband is out, the mouse rate has dropped to zero. And my dog is so used to eating mice that he refuses to eat puppy chow unless he is driven to desperation by hunger. I've been buying pet mice at the pet store for the little guy to eat, but it's just not sustainable financially.

That brings me to this post. I know this is an odd ask, but are there any tips on how to attract mice? I've tried everything, from spilling chips all over the house to spraying cheese spray all over the floor. Nothing is working. Is there a certain food or chemical that mice can't resist? Or should I just remarry my husband and put up with his endless "business trips" and "overtime work"?