Spread the thawed hash browns evenly in the greased baking dish. Layer the cooked sausage on top. Spread diced bell pepper and chopped onion over the sausage. Sprinkle ½ cup of cheese over the top.
Don’t care too much for sausage ... roll casserole you'll see below. Cinnamon rolls have never been easier. There are also plenty of recipes for breakfast casseroles with hash browns.
Add the egg, a good couple of pinches of salt and freshly ground black pepper (you need to salt the mixture well otherwise the hash browns can be quite bland). Mix the ingredients well.