Preheat the oven to 350°F. Combine the stuffing ingredients seasoning well with salt, and stuff into the four quail, tying the legs with kitchen string, then cut the string ends short. Season on both sides with salt and pepper. Place an oven-proof skillet over medium-high heat and, when hot, add the neutral oil. Brown the quail well, starting breast side down, then flip and brown the other side. Transfer the skillet to the oven and roast for 10 minutes (internal temperature of 155°F). Remove quail from the skillet and set on paper towels to drain while you prepare the plates. Cut and remove the strings.