Add all the ingredients to a 1.5-quart slow cooker and stir to combine.
Cover and cook on HIGH for 1 1/2 hours stirring occasionally, until the dip is melted and isn't super stringy. (You can also cook this dip on LOW for 2 1/2 to 3 hours.)
Give the dip a stir and then turn the crock pot to WARM or transfer the dip to a serving dish. Serve warm with crostini, crackers, or breadsticks.
Notes
If you want to bake this dip instead:
In a medium mixing bowl, stir together the cream cheese (softened), mozzarella, pepperoni, sausage, bacon, and pizza sauce. You want everything really well incorporated.
Spread dip into an 8-inch x 8-inch baking dish. Top with jack cheese.
Bake at 350 degrees F for 25-30 minutes or until the dip is bubbling and cheese is melted.