1-Start: Start by preheating your oven to 400 degrees Fahrenheit, which gives you a head start while you mix things up. This temperature helps lock in those juicy flavors without drying out the meat.

2-Mix Ingredients: In a large bowl, mix 2 pounds ground chicken with 1 egg, 1/4 cup mayonnaise, 1/4 cup plain bread crumbs, 2 teaspoons minced onion, 1 1/2 teaspoons garlic powder, 1/2 teaspoon dried parsley, 1 1/2 teaspoons salt, and 1/2 teaspoon ground black pepper until everything blends nicely. Spray a 9-inch x 5-inch loaf pan and spread half of this mixture evenly on the bottom for a solid base. Trust me, taking your time here makes all the difference.

3-Layer and Bake: Next, layer 3 slices of ham and 3 slices of Swiss cheese on top, then add another layer of the remaining 3 slices of ham and 3 slices of Swiss cheese. Cover it all with the rest of the chicken mixture to seal in those gooey goodies. Bake for 25 minutes, then sprinkle 3/4 cup fresh or panko breadcrumbs on top and bake for another 15 minutes, covering with foil if it browns too fast.

4-Prepare Gravy: For the gravy, melt 3 tablespoons butter in a saucepan over medium heat, whisk in 3 tablespoons flour, and cook for a minute. Slowly add 1/4 cup heavy cream, 1 cup skim or 1% milk, 1 teaspoon Worcestershire sauce, and 1 tablespoon Dijon mustard, simmering until it thickens. Stir in 1/2 cup grated Parmesan cheese and 1/4 teaspoon freshly grated nutmeg, then season with a pinch of salt and pepper. Let the meatloaf rest for 10 minutes before slicing and serving with the gravy.