O man..... don't throw them away. If your not gonna grill them and give it a try.... crumble it up and fry it up and refreeze it for pizza or as a topping for something. No need to throw it away. I fry up hamburger and sausage all the time and put it in the freezer for using it on pizza or dips..... don't pitch it.
Personally, I get all the smoke flavor I want without using frozen meat. I think there would be a number of problems with throwing frozen meat into the smoker. I've never heard of anyone doing it. I have frozen hamburgers and slammed them on the grill right out of the freezer. That works great...... but... I wouldn't do the frozen meat into the smoker thing.