I have 2 day geckos, a gold dust who's about 3 years old and a klemmeri who's about 2 (they may be 4 and 3, I've lost track of time). They both seem more enthusiastic about the baby food than the crickets though I feed both. I have not seen anyone eat a cricket in awhile, though the crickets eventually disappear. I haven't seen either eat baby food out of the dish, but it disappears consistently. I imagine it's OK, but you may want to keep putting crickets in there just in case.
Aliza