I say no as well. Unlike monitors, dragons are not known to eat eggs. Many monitor species will consume birds eggs and reptile eggs (turtle eggs) when they encounter them in the wild.
The best way to 'fatten' up a bearded dragon is to feed it as much food as it will eat in a 10 min period. For hatchlings up to about 4 months of age, 2-4 feedings of insects daily, 4 months to 8 months, 2-3 feedings a day, 8-14 months two feedings a day is good. After 14 days, feed once every day. Up to 14 months insects should be the primary food source, crickets, superworms, silkworms, hornworms, butterworms, phoenix worms (great for hatchlings but rather small for older dragons) and some species of roaches. As a draogn ages, greens should be offered all day long and start to make up the bulk of the dragons diet.
Hatchlings should have 90%-100% insects, Juveniles roughly 50%/50% insects/greens and adults 90% greens.
Healthy well fed babies will grow quickly under good to perfect husbandry conditions.
The best way to add variety to a dragon's diet is to offer a variety of insects and greens, not just a variety of greens.
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PHLdyPayne