- 3 (8 ounce) packages cream cheese, softened
- 1 onion, finely chopped
- 2 cups grated Parmesan cheese
- 1/2 cup mayonnaise
- Preheat oven to 400 degrees F (200 degrees C). Lightly grease a medium baking dish.
- In the prepared dish, mix the cream cheese, onion, Parmesan cheese and mayonnaise.
- Bake in the preheated oven 30 minutes, or until bubbly and lightly browned.