A delicious and easy-to-make breakfast casserole perfect for family gatherings or a hearty morning meal.
Preheat your oven to 350°F (175°C) and grease a 13x9-inch baking dish with cooking spray.
Ensure the dish is well-greased to prevent sticking and make cleanup easier.
In a mixing bowl, combine the diced ham, chopped onion, shredded hash browns, and 1 cup of the shredded cheese.
Mix thoroughly to ensure even distribution of ingredients.
Spread the mixture evenly into the prepared baking dish.
Press the mixture gently to create an even layer.
In another bowl, whisk together the Bisquick mix, milk, and eggs until smooth.
Whisk until no lumps remain for a smooth batter.
Pour the Bisquick mixture over the ham and hash brown mixture in the dish.
Pour evenly to cover the entire surface.
Bake uncovered in the preheated oven for 40 minutes.
Check for doneness by inserting a toothpick in the center; it should come out clean.
Sprinkle the remaining 0.5 cup of cheese over the top and bake for an additional 2-3 minutes until melted.
For a golden crust, broil for the last minute.
Let the casserole cool slightly before serving. Enjoy your delicious breakfast!
Allowing it to cool helps the casserole set and makes serving easier.