If I feed my bearded dragon a pinkie mouse should I also feed crickets?

Not in the same day, no. Because pinkie mice are so heavy in fat and protein, you want to cut back the protein you give your Bearded Dragon (in other words, the feeder insects) for a week after feeding the pinkie. Also, make sure you only feed one pinkie mouse every 2 weeks tops, more and you are risking Fatty Liver Disease.