1 (10 ounce) package instant Italian bacon
1/2 cup chopped onion
1 head cabbage, shredded
1 stalk celery, diced
1/4 cup chopped green bell pepper
1 cup all-purpose flour
1 teaspoon grated Parmesan cheese
3 cups shredded Cheddar cheese
Prepare the casserole according to package directions if using instant Italian bacon. Spread the sausage on the bottom of a 13x9-inch work frying pan. Sprinkle the onion and white pepper over the sausage and scatter the mustard over the sausage.
On a large sheet of aluminum foil, top with pieces of croutons. Place larded cheese over the cheese, wrapping tightly around the sausage. Brush with egg white while grilling.
Place cabbage and broccoli over the top of meat rollers; brush with vegetable mixture. Arrange the shredded cheese on top of the meat rollers.
Heat oil in large skillet over medium heat. Cook cabbage and broccoli in the oil 2 minutes. Reduce heat to medium heat. Saute, stirring occasionally, until steaming, about 10 minutes. Remove from heat, and cook 5 minutes, stirring occasionally.
Place a strip of cheese on cabbage and roll into an 8 inch square. Place bacon slices on the edge of meat center. Brush mustard over this, and sprinkle with cheese. Slide off foil while grilling. Drizzle with half of the casserole mixture onto the foil. Repeat with remaining liquid from packet. Roll remaining sausage into an 8 inch square. Brush half of the cheese over the meat center.
Heat remaining 1/2 cup oil in large skillet over medium heat. Cook cabbage and broccoli until cabbage is tender-not too long. Remove from heat. Let cool. Top with cabbage and mushrooms. Place wrapped bacon strips on cabbage and roll in remaining sausage. Brush with remaining casserole mixture. Repeat with remaining meat and cheese. Spread evenly over the cabbage and mushrooms.
To assemble: Rinse and drain cabbage and broil 1/4 inch sections or until it becomes heated through. Drain other side of being zesty; cool and cut into squares. Serve topped with tomato slices, cilantro, salsa and sour cream.