01 -
Place cubed English muffins on a baking sheet and leave on counter overnight to dry out. Alternatively, toast under the broiler until lightly golden.
02 -
Spray a 12×8-inch dish or deep 13×9-inch baking dish with nonstick cooking spray. Layer half of the English muffin cubes on the bottom, followed by half of the ham and half of the shredded cheese. Repeat layers, ending with cheese.
03 -
In a medium mixing bowl, whisk together half and half, eggs, salt, pepper, mustard powder, garlic, onion powder, thyme and nutmeg until fully combined. Pour evenly over the layered ingredients.
04 -
Using the back of a spoon, gently press the English muffin cubes into the egg custard, ensuring even distribution. Cover with plastic wrap and refrigerate overnight.
05 -
Preheat oven to 350°F (175°C). Remove casserole from refrigerator 15 minutes before baking. Remove plastic wrap, dot the top with butter cubes and sprinkle with paprika.
06 -
Cover with foil and bake for 30 minutes. Remove foil and continue baking for 15-20 minutes until the top is golden brown and a knife inserted into the center comes out clean.
07 -
While casserole is baking, prepare hollandaise sauce according to recipe or packet instructions.
08 -
Allow casserole to rest for 5 minutes. Drizzle with hollandaise sauce before serving, with additional sauce on the side if desired. Garnish with chopped chives or fresh parsley.