A sandwich with arugula, whole muscle ham, Gouda cheese, and kabocha squash.
Remove the seeds from the kabocha squash and steam it.
Mash the kabocha squash and season with salt and pepper.
Slice the campagne bread.
Spread cream cheese on one side of the bread.
Generously add the mashed kabocha on top.
Top with nuts according to your preference.
Cover with another slice of bread to complete the sandwich.