This is my sister's recipe which she makes for parties and holiday events. The sandwiches are always a popular food item! In Spring of 2007, this recipe was featured in two North Carolina newspapers by the famous Food Editor, Helen Moore. Plan ahead because the vegetable mixture needs to be refrigerated 25 hours for the flavors to blend well. The recipe yields 112 party-size, quartered sandwiches. Preparation time, not refrigeration time, is stated.