Bearded dragon females will lay eggs even if they haven't mated with a male, this is usually stimulated if a male is visible. Some bearded dragon females, however, who have never really seen a male, other than when co-habitating as hatchings, have laid eggs too. 

Eggs laid without a successful breeding event are not fertilized, and therefore should be removed from the enclosure and discarded. 

The female will likely lay more than one clutch of eggs, this may happen every 2-6 weeks, clutch sizes are likely to be smaller than fertilized eggs, the eggs laid will likely be smaller as well.

Producing eggs, whether fertilized or not is very taxing on the female body and psyche.

The female should be provided with extra calcium rich foods and supplements in order to maintain her health, weight, and fat resources.

Females also tend to want to drink more water than usual as well.  (See FAQ How do I give my dragon water?  Can I give my dragon a bath?  Is my dragon dehydrated?)

Click here for a list of appropriate and inappropriate vegetables, fruits, and insects. (The information included has been collected and compiled from multiple web and magazine resources.)