Spicy Lamb and Mint Sausage

Name: Spicy Lamb and Mint Sausage
Ingredients: 3 pounds lamb shoulder, fat and sinew trimmed, cubed; 1 pound pork fatback, cubed; 1 cup chopped fresh mint; 3 chipotle chiles in adobo sauce, minced (about 2 ounces); 1/4 cup chopped fresh chives; 1 tablespoon freshly ground black pepper; Finely grated zest of 1 orange; Kosher salt; 1/2 cup cold whole milk, chilled; 1/2 cup red wine, chilled; 1 8-foot hog casing, soaked in water 30 minutes and then flushed with water; Baguette or crusty rolls, for serving; Crumbled feta cheese, for serving; Roasted red peppers, for serving