01 -
Spray a 9x13-inch baking pan with non-stick cooking spray.
02 -
Arrange half of the diced Canadian bacon evenly in the pan, then layer the cut English muffins followed by the remaining Canadian bacon.
03 -
In a large bowl, whisk together the eggs, whole milk, onion powder, garlic powder, paprika, and a pinch of salt until smooth.
04 -
Pour the egg mixture over the layered ingredients, pressing the muffins gently to soak. Cover and refrigerate for at least 5 hours or overnight.
05 -
Allow the casserole to sit at room temperature for 30 minutes before baking.
06 -
Preheat oven to 375°F (190°C). Cover the baking dish with foil and bake for 35 minutes.
07 -
Remove foil and bake uncovered for an additional 15 minutes or until the casserole is puffed and golden brown.
08 -
Blend egg yolks, heavy cream, lemon juice, Dijon mustard, cayenne pepper, and salt until smooth. Slowly drizzle in melted butter while blending until creamy.
09 -
Slice casserole, serve warm drizzled with hollandaise sauce, and garnish with chopped chives.