Preheat oven to 350°F.In a bowl, stir together the cream cheese, yogurt, nutmeg, 4 oz. (about 1 cup) cheddar, and turkey until thoroughly combined.Transfer to a glass baking dish and spread evenly.Top with tomato, bacon, the remaining 2 oz cheddar cheese, and the pecorino romano cheese.Bake at 350°F for about 30 minutes, or until hot and bubbly, and lightly browned.Serve with crackers, baguette slices, and veggies for dipping.