Did this before and could not remember how it worked out. Sunday late Linda wanted a chicken breast so cranked up the Mini. While it was cooking (about two mins left) I thought wings would be nice and had about a doz frozen in the garage. So pulled her chicken and just dumped the wings on Mini. Had a bottle go Bone Sucking Sauce Rub that had not been used. So after about three mins flipped wings and applied rub to soft side. About three mins later flipped once more and applied rub again. The wings cooked up just fine from pure frozen state. The Bone Sucking Sauce Rub was very mild, just like the sauce that I mix 50/50 with Blues Hog for BBQ chicken anyway. About every 3 months I pull a bag full of rubs and take to work, it will be in the next bag. Ok, this was a long way to say if no time just put the frozen wings ( or breast) on the Egg.
Salado TX Egg Family: 2 Large and a very well used Mini, added a Mini Max (I'm good for now).