Jambalaya Sandwich

Name: Jambalaya Sandwich
Ingredients: 1/4 pound thick cut bacon, diced; 2 sourdough bread loaves (about 1 foot long); 1 pound pork butt or pork loin, cut in 1/2-inch pieces; 1 pound smoked sausage, sliced 1/4-inch thick; 1/2 pound andouille sausage, sliced 1/4-inch thick; 2 cups chopped red onions; 1 cup julienned red bell peppers; 1 pound boneless chicken thighs, cut in 1/2-inch pieces; 2 celery stalks, thinly sliced; 1 tablespoon minced fresh garlic; 1/4 cup chopped parsley leaves; 1 cup chopped green onions; 1 teaspoon salt; 2 teaspoons freshly cracked black pepper; 2 teaspoons cayenne pepper, or to taste; 1/2 cup water; 1 pound Havarti cheese, thinly sliced