If you're driving down 191 from Moab you might want to make a side trip to the Needles section of Canyonlands NP. You can then go down 491 to Cortez. You will want to stop at Four Corners on your way to Monument Valley. You will only be there for an hour but everyone must do it once and then never again.
In Cortez we tried to eat at KoKos. Don't waste your time. See my revue. We ate at J. Fargo. Decent food at a decent price.
Mesa Verde is a beautiful park. Be prepared for lots of climbing if you want go into the ruins. Long ladders are not for anyone out of shape like my wife and I. We elected to see the ruins from the road. A telephoto lens allowed us to get great pictures. When we went they were working on the mountain road into the park which caused some delays but nothing major.
Staying at the Far View Lodge will give you the luxury of touring the park at a slow pace. Enjoy !!