Preparing Morton Steakhouse Chicken Christopher is a straightforward process if you follow these steps:

1. Prepare Chicken: Season the chicken breasts with salt and pepper on both sides.
2. Heat Oil: In a large skillet, heat the olive oil over medium heat.
3. Cook Chicken: Add the chicken breasts to the skillet and cook for about 6-7 minutes on each side or until cooked through and golden brown. Remove and set aside.
4. Sauté Mushrooms: In the same skillet, add the sliced mushrooms and sauté until they are tender, about 3-4 minutes.
5. Create Sauce: Stir in the minced garlic and cook for an additional minute, followed by adding the chicken broth and heavy cream. Stir well until combined.
6. Season Sauce: Mix in the Dijon mustard and bring the sauce to a gentle simmer. Allow it to thicken slightly, about 2-3 minutes.
7. Combine Chicken: Return the cooked chicken breasts to the skillet, coating them with the sauce.
8. Add Cheese: Sprinkle the mozzarella and Parmesan cheese over the top of the chicken. Cover with a lid and let it melt, about 2-3 minutes.
9. Garnish: Once melted, garnish with fresh parsley for a pop of color and flavor.
10. Serve: Remove from heat and serve hot, either directly from the skillet or transferred to a serving platter.

Following these steps will guide you to create an exceptional dinner that rivals any high-end restaurant.