Stuffing: Heat olive oil and butter in a medium skillet over moderate heat. When the butter melts, add the celery, onion, and bay leaf. Season with salt and pepper. Crumble the muffins into the pan and combine with the vegetables. Add thyme and chicken stock. Cook stuffing 5 minutes, stirring occasionally, then remove from heat and let stand in the warm pan.
Turkey and Gravy: Preheat a large skillet over medium high heat and add the olive oil. Season turkey cutlets with salt, pepper and poultry seasoning. Saute 5 minutes on each side, then transfer cutlets to a warm plate and cover plate with aluminum foil. Return skillet to stove and reduce heat a bit. Add butter, then flour to the melted butter. Cook flour and butter a minute or two, stirring with a whisk. Whisk in chicken stock. Reduce the stock 2 or 3 minutes, to desired gravy consistency. Season with salt and pepper, to your taste.
To serve, mound cranberry orange stuffing onto each dinner plate using an ice cream scoop. Rest sauteed turkey cutlets on top of the stuffing and cover the turkey with gravy. Garnish with chopped parsley.