01 -
Preheat oven to 400°F (200°C).
02 -
In a large bowl, combine ground chicken, egg, mayonnaise, 1/4 cup plain bread crumbs, minced onion, garlic powder, dried parsley, salt, and black pepper. Mix thoroughly until well incorporated.
03 -
Press half of the chicken mixture into the bottom of a standard loaf pan. Layer the chicken ham slices evenly over the mixture, followed by the Swiss cheese slices. Top with the remaining chicken mixture, pressing down firmly to seal the edges.
04 -
Bake in preheated oven for 25 minutes.
05 -
Remove meatloaf from oven, sprinkle panko breadcrumbs evenly over the top, and return to oven.
06 -
Bake for an additional 15 minutes until meatloaf is completely cooked through (internal temperature reaches 165°F/74°C) and breadcrumbs are golden brown.
07 -
While meatloaf finishes baking, melt butter in a saucepan over medium heat. Whisk in flour and cook for 1-2 minutes. Gradually add milk and cream, whisking constantly to prevent lumps. Add Worcestershire sauce and Dijon mustard. Bring to a gentle simmer until thickened, about 3-5 minutes.
08 -
Stir in grated Parmesan cheese and freshly grated nutmeg. Season with salt and pepper to taste. Keep warm until ready to serve.
09 -
Allow meatloaf to rest for 10 minutes before slicing. Serve with warm Parmesan cream gravy.