Place cream cheese, cream, garlic pepper in the bowl of a food processor or mixer and blend until smooth. Stir in bleu cheese and green onion and pulse a 2 of 3 times to combine.
Spread dip into a medium baking dish. Bake for 20 minutes until heated through.
To make life a little easier on the day of a party, make the dip a day in advance, portion into the baking dish, cover and refrigerate. When you're ready to heat the dish, transfer it straight from the fridge into the oven and just bake it a few extra minutes.