From what I've noticed in my research, meats like chicken, turkey, beef are very high in phosphorus and low in calcium. For example here are some of the calcium to phosphorus ratios of a few meats...
Chicken (cooked) 1:16.7
Hamburger (10% fat, cooked) 1:15.5
Pork chop (cooked) 1:7.8
But if you compare that to some of the "reptile foods"...
cricket 1:12
mealworm 1:25
superworm 1:18
wax worm 1:7
There really isn't that much difference in the calcium to phosphorus ratios. That's why we dust crickets with calcium and gut load them. You have to level the playing field. I guess I would say that pork chops would be your best bet. I have actually fed a small amount to my beardie once and he really enjoyed every morsel. The pork chop was barbequed over an open flame and no seasonings were added to it.
Hope this info helps...
Veronica
Beautiful Dragons