Prepare ravioli and mixed vegetables according to package directions. Usually this means bringing a pan of water to boil and adding the frozen raviolis. Cook at a boil until tender, about 5 minutes. The vegetables can be prepared in a separate pan, using a similar method, or added to the same pan as the ravioli. Drain water from ravioli and vegetables. 

Meanwhile, in a small bowl, mix the soup with the mushrooms (drained) until smoothly blended. 

Return ravioli and mixed vegetables to large, still warm pan. Pour mushrooms and cheese sauce over the ravioli. Heat over low until sauce is warmed.