I second that just used my GMG pizza oven on the pro 575 it works perfectly got up to 700 degrees and Cooks pizza in 6 minutes.

Green Mountain Grill Wood Fired Pizza Oven for Daniel Boone and Jim Bowie Pellet Grill https://www.amazon.com/dp/B089NY2F15/ref=cm_sw_r_cp_api_glt_fabc_RVXGDKX1YQXEF65TZNXS?_encoding=UTF8&psc=1