01 -
Heat a large skillet over medium heat. Add the sausage and cook, breaking it into small crumbles, until browned and cooked through, 6-8 minutes. Drain well and transfer to a bowl.
02 -
Whisk the eggs, milk, salt, and pepper in a bowl. Wipe out the skillet, reduce the heat to medium-low, and cook the eggs gently, stirring often, until softly set but not dry, 3-4 minutes.
03 -
Add the scrambled eggs to the sausage. Fold in the chives and taste for seasoning. Let the filling cool for 2 minutes so it is easier to sandwich.
04 -
Butter one side of each bread slice. Place 4 slices butter side down on a board. Add 1 slice of cheese, about 3/4 cup egg and sausage filling, another slice of cheese, and the remaining bread butter side up.
05 -
Heat the skillet over medium-low. Cook 1 or 2 sandwiches at a time until the bottom is golden brown and crisp, 3-4 minutes.
06 -
Flip carefully and cook the second side until golden brown and the cheese is melted, 3-4 minutes more. Cover the skillet for the last minute if the cheese needs help melting.
07 -
Transfer to a cutting board and rest for 1 minute. Slice in half and serve hot.