Preheat oven to 375*. Cook pasta according to package directions. Drain.
Melt butter in saucepan over medium heat. Stir in flour, cook 2 minutes, stirring constantly with a whisk. Gradually add stock and milk, bring to a boil. Reduce heat and simmer 5 minutes. Remove from heat, stir in 2 oz. Parmesan cheese, cream cheese, salt & pepper.
Heat large skillet over medium high heat. Add 1 T. oil to pan, swirl to coat. Add mushrooms, saute 3 minutes, stirring occasionally. Add onion, garlic, saute 3 minutes. Add wine, cook 1 minute. Combine milk mixture, mushroom mixture, pasta, turkey/chicken and peas. Toss to combine. Spoon the pasta mixture into a 13x9" baking dish coated with Pam.
Place bread in a food processor. Process until crumbs form. Combine crumbs & remaining Parmesan, sprinkle over pasta. Bake at 375* for 30 minutes or until browned and bubbly. Top with parsley.