In a skillet, cook the crumbled sausage over medium heat until browned.
Remove the sausage and set aside, leaving 1 tablespoon of drippings in the pan.
In the same skillet, add the chopped onion and green peppers.
Sauté until soft, then remove and combine with the cooked sausage.
In a bowl, whisk together the eggs, milk, salt, and black pepper until well blended.
Melt butter in the skillet over low heat.
Pour in the egg mixture.
Slowly stir the eggs with a spatula as they begin to set.
As the eggs start to cook, gently fold in the sausage, onions, and pepper mix.
Stir until the eggs are fully cooked and fluffy.