lol you guys saying ditch it are ninnies, what possible cross contamination would this food pick up IN THE OVEN? just because it dipped below 140 for an hour or two doesn't mean it's not safe.
If it spent any appreciable time above 140 it's pasteurized. 30 minutes at 145 kills all your baddies. So, heat it back up and finish the cook. It will be fine.