In a skillet on high heat cook the sausage patties, breaking them up into bite size pieces until almost cooked all the way through (no pink should be showing) about 5 minutes. Then add in the onions and mixed bell peppers. Stir and reduce heat to medium, let cook 2 minutes.
Add in 2 tablespoons of butter and the package of hashbrowns. Season with paprika, black pepper, and parsley. Mix well and cook and one side for five minutes. Flip with a spatula and then cook for an additional 5 minutes until crispy. Top the skillet with shredded mozzarella cheese.
Serve immediately and with eggs on top if desired.