The verdict: a treat, not a staple
Yes, your bearded dragon can eat strawberries, and the odds are it will make a beeline for them — few dragons ignore that red flash and sweet smell in the bowl. Safe, though, is not the same as suitable every day. Strawberries sit in the same corner of a dragon's diet as the other fruits: an occasional extra that adds interest to a salad built on far more serious foods. Think of them the way you would think of dessert in your own diet — welcome now and then, a problem if they start standing in for the meal itself.
Why strawberries don't earn a regular place
Two things keep strawberries out of the staple tier. The first is sugar. A bearded dragon is a desert animal built for lean pickings, and captive dragons already live an easier life than wild ones; regular sugary fruit piles in energy they never burn off, and it commonly shows up as loose, messy droppings. The second is mineral balance. A dragon's skeleton depends on taking in more calcium than phosphorus, because phosphorus binds calcium and keeps it from being used. Strawberries run the wrong way on that ratio — more phosphorus than calcium — so a bowl that leans on fruit week after week quietly works against the very thing the leafy staples are there to do, laying the groundwork for the soft bones and weakness of metabolic bone disease.
Serving a strawberry the dragon-safe way
When you do offer one, prepare it properly. Wash the berry thoroughly to clear any residue from its skin, slice off the leafy green top and stem, and cut the flesh into pieces small enough to be taken cleanly — a whole strawberry is a wrestling match for most dragons. The tiny seeds are not a concern. Chop a small amount over a normal salad of staple greens rather than serving a pile of fruit on its own, and tuck the pieces in among the leaves so your dragon picks up greens on the way to the sweet bits. If strawberries are new to this particular dragon, start with just a few pieces and glance at the next day's droppings; rich new foods can loosen the stool for a day without anything being wrong. Take out whatever is uneaten by the end of the feeding window, because fruit sours quickly under basking heat and draws flies in a warm room.
How often is sensible — and what should send you to a vet
For a healthy adult, a small serving every couple of weeks is a sensible rhythm. Juveniles, whose growth is riding on insects and greens, need fruit less often than that — their variety is better spent on the foods that actually build them. Keep an eye on the pattern rather than the single serving: droppings that stay loose whenever fruit appears, a dragon that starts turning its nose up at greens while it waits for sweet foods, or any weakness, trembling or lost appetite in a dragon whose diet has drifted fruit-heavy are all reasons to tighten the bowl back up, and to book a reptile vet if the physical signs persist. The fruit itself is never the emergency — the slow drift away from staples is.
Logging the house rule in KinsLe's Care Teams — strawberries as a now-and-then extra, marked off each time they are served — keeps every feeder honest about how often treat day has actually come around.