He'll be O.K, he's not a baby anymore and between the freeze dried crickets and salad he'll be fine. You can also try a little scrambled egg, microwave for a minute, let cool and offer a bit at a time. Most beardies will eat some but don't give him the entire thing, it's rich and can give them a slight case of the runs. [ sometimes ] . But no need to worry, he'll be fine eating like that for a week or longer if need be. Another option is a bait store, you can check for waxworms + mealworms.