However, I did make a beef roast recently and hey, whatdoyaknow, when you have a proper meat thermometer that you can stick into the meat and leave it there while it's in the oven, cooking isn't nearly as unpredictable!
This roast still came out a bit more done than I wanted, but now I know for next time. The veggies were a frozen mix that worked quite nicely. I'm glad I didn't have to chop all of that stuff!