Preheat oven to 350°F (175°C). Grease a 9-inch pie plate.
In a medium bowl, combine mayonnaise, sour cream, cheddar cheese, Parmesan cheese, green onions, sweet green chiles, garlic powder, onion powder, salt and pepper. Mix until combined.
Spread the mixture into the prepared pie plate.
Bake in preheated oven for 25 minutes or until cheese is melted and bubbly.
Serve warm with chips, crackers, or toasted baguette slices.
Interesting Facts
Million dollar dip is an American classic and has been around since the 1950s.
It is also known as “crack dip” because it is so addictive!
This dip can be made ahead of time and stored in the fridge for up to 3 days before baking.