Baby food is not a good food for bearded dragons. Baby food isn't even good for crested geckos...at least not by itself. Most baby food is just too high in sugar, some with other stuff not good for bearded dragons or crested geckos (or other 'nectar' eating geckos) Organic type baby foods with no additives or added sugar (glucose, fructose etc are sugars, just different types (same with sucrose) could be used with nectar eating geckos (crested geckos, gargyle geckos, most of the Rhacodactylus species), but keep in mind, fruit baby food and crickets isn't a complete diet for them, though they can do well on it. Not bearded dragons as they are not fruit eaters...only a small part of their diet should include fruit (no more than 5% of total dietary intake per day)
As an emergency for a sick bearded dragon, chicken or beef baby food could be used but its not a good staple or even a regular addition.
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PHLdyPayne