Preheat oven to 375, set rack on top third of oven.Combine the soft cream cheese and mayonnaise in a large bowl or the bowl of a stand mixer. Mix on low speed until blended. Place remaining ingredients in bowl and gently fold until all ingredients are combined.Lightly grease a 10 inch round or other casserole type pan.Spread the ingredients into the pan. Sprinkle remaining ½ cup parmesan cheese on top of dip.Bake for 30 minutes. After baking garnish with remaining chopped green onions.Serve with sliced baguettes, pita slices, crackers or vegetables.