Preheat the oven to 325 degrees F.
Heat the oil in a skillet over medium heat. Add the pepperoni and cook, tossing, until the fat is rendered and the pepperoni are crisp, 5 to 7 minutes. Remove to a paper towel-lined plate to soak up the extra fat.
In a large bowl, mix together the cream cheese, Italian seasoning and scallions until well blended, then season with salt and pepper. Add Sunny's Cocoa-Cola BBQ Sauce and stir to incorporate. Fold in the chicken, pepperoni and both cheeses. Pour everything into a 7-by-11-inch casserole dish.
Bake until the cheese is melted and bubbling around the edges, 20 to 25 minutes. Serve warm with the dippers of your choice.
In a medium saucepot on medium-high heat, add the Coca-Cola, ketchup, onion, Worcestershire, vinegar, red pepper flakes, garlic, a pinch of salt and a few grinds of black pepper. Simmer, stirring occasionally, until reduced and thickened to barbecue sauce consistency, 15 to 20 minutes.