Cook pasta according to package directions, omitting salt and fat; drain.
Melt the butter in a large nonstick skillet over medium-high heat. Add the mushrooms, onion, shallots, garlic, 1 teaspoon salt, and pepper; cook 12 minutes or until liquid evaporates and mushrooms are tender, stirring occasionally. Add wine; cook 2 minutes or until liquid evaporates, stirring occasionally. Remove from heat.
Add the cooked pasta, whipping cream, cheese, and 2 tablespoons parsley, tossing gently to coat. Stir in remaining 1/2 teaspoon salt. Garnish with minced fresh parsley, if desired. Serve immediately.