How to Bake Preheat oven to 375 Place cast iron skillet on medium-high heat with olive oil. Add garlic and spinach. Allow spinach to cook down then add the artichoke and cook for 5 minutes. Remove from heat and set aside. In a bowl, combine mayonnaise, cream cheese, mozzarella, parmesan, cooked vegetables, salt and pepper. Stir until well combined and cheese is melted. Place melted butter in cleaned out cast iron skillet. Place Buttermilk Biscuits around the edge and spoon dip into the center. Bake 25-30 minutes until golden brown. Allow to cool and enjoy with the whole family!