Heat oven to 350°. Grease 8-in square baking dish.
In medium skillet, brown sausage with onion and pepper. Drain.
Arrange potatoes in the bottom of baking dish.
Top with half of the cheese, all of the sausage and the remaining cheese.
In a small bowl, beat the eggs slightly. Add milk. Pour over mixture in dish. Cover with foil.
Bake at 350° for one hour. Uncover and bake an additional 10 minutes or until knife inserted in the center comes out clean.
Let stand 5 minutes before serving.
Serve topped with salsa.