Preheat the oven to 350°F (175°C). Coat a 9-inch square baking dish with cooking spray.
Place the hot Italian pork sausage in a large skillet over medium-high heat. Cook, stirring frequently and breaking it into crumbles, until browned and fully cooked, about 8–10 minutes. Drain on a plate lined with paper towels.
In a large bowl, combine the cream cheese, sour cream, sliced scallions, Worcestershire sauce, onion powder, garlic powder, shredded blue cheese, and half of the cubed prepared cheese product. Stir until the ingredients are well combined.
Transfer the mixture to the prepared baking dish and spread it into an even layer. Sprinkle the remaining cubed cheese over the top.
Bake in the preheated oven until the dip is hot, melted, and bubbly around the edges, approximately 30–35 minutes. Garnish with additional sliced scallions, if desired, and serve warm with tortilla chips.
