Cheesy Ham and Egg Breakfast Casserole with Biscuits

Bahan-bahan (12 porsi)

• 2 cups flour (spooned and leveled)
• 1 teaspoon salt
• 2 teaspoons sugar
• 1 tablespoon + 2 teaspoons baking powder
• 1/2 cup butter (cold (1 stick))
• 3/4 cup cold buttermilk OR cream***
• 9 large eggs
• 1 & 2/3 cups cream*** OR evaporated milk
• 1 teaspoon seasoned salt (I like Lawry's)
• 1/2 teaspoon salt
• 1/2 teaspoon black pepper
• 1/4 teaspoon dry mustard powder
• 1/4 teaspoon onion powder
• 2 & 1/2 to 3 cups smoked ham (chopped*)
• 3 cups cheese (shredded (I used cheddar and Monterey Jack))
• chopped parsley
• chopped green onions
• 1 recipe of Blender Hollandaise Sauce (to serve with)