1Bring first 6 ingredients to a boil in a saucepan; gradually whisk in grits. Cover, reduce heat and simmer 5-7 minutes, whisking occasionally. Add 1/2 cup cheese, stirring until cheese melts. Remove from heat; let stand 10 minutes. Lightly beat 2 eggs and stir into grits mixture; pour into a greased 10" deep-dish pie plate. Bake at 350 degrees for 20 minutes; remove from oven. Increase temperature to 400 degrees. Saute ham and onions in a nonstick skillet over medium-high heat 5 minutes or until onion is tender. Layer ham mixture evenly over grits crust. Whisk together milk and remaining 6 eggs; pour over ham mixture. Sprinkle remaining 3/4 cup cheese evenly over egg mixture. Bake at 400 degrees for 35 minutes. Let stand 10 minutes and cut into wedges. Garnish, if desired.