• Preheat oven to 400 F and spray a 9×13 baking dish with non-stick cooking spray.
• Dump the bag of frozen hash browns into baking dish. No need to thaw.
• Pour melted butter evenly over frozen hashbrowns and sprinkle with salt and pepper. Use a spoon to gently combine ingredients.
• Bake in a preheated oven for 25 minutes, or until potatoes are tender and lightly browned on top.
• Remove casserole dish from the oven and allow to cool slightly.
• Sprinkle cheese evenly over casserole and add cubed ham. Gently toss potatoes, cheese, and ham to combine well.
• Sprinkle bacon bits evenly over top of casserole. Cover tightly with saran wrap and place in the fridge overnight.
• In a large bowl whisk together eggs, milk, mustard powder, and onion powder. Cover and place in the fridge overnight.
• In the morning when you are ready to bake, Remove baking dish and egg mixture from the fridge. Preheat oven to 350F.
• Pour egg mixture over casserole, making sure everything gets wet.
• Bake in a preheated oven for 50-60 minutes or until the edges are brown and the center of the casserole is done when a fork is inserted. If the edges of the casserole are getting to brown, and the center isn't quite done, cover with aluminum foil for the remainder of the baking process.
• Serve immediately with sliced green onions and extra shredded cheese. Enjoy!

INSTRUCTIONS IF BAKING RIGHT AWAY

• Preheat oven to 400 F and spray a 9×13 baking dish with non-stick cooking spray.
• Dump the bag of frozen hashbrowns into baking dish. No need to thaw.
• Pour melted butter evenly over frozen hash browns and sprinkle with salt and pepper. Use a spoon to gently combine ingredients.
• Bake in a preheated oven for 25 minutes, or until potatoes are tender and lightly browned on top.
• Remove casserole dish from the oven and allow to cool slightly. Reduce oven temperature to 350 F.
• Sprinkle cheese evenly over casserole and add cubed ham. Gently toss potatoes, cheese, and ham to combine well.
• In a large bowl whisk together eggs, milk, mustard powder, and onion powder.
• Pour egg mixture evenly over top of casserole, making sure everything gets wet. Sprinkle bacon bits evenly over top of casserole.
• Bake in a preheated oven for 50-60 minutes or until the edges are brown and the center of the casserole is done when a fork is inserted. If the edges of the casserole are getting to brown, and the center isn't quite done, cover with aluminum foil for the remainder of the baking process.
• Serve immediately with sliced green onions and extra shredded cheese. Enjoy!