Chicago-Style Italian Beef Sandwich

Name: Chicago-Style Italian Beef Sandwich
Cook time: 45 min
Total time: 45 min
Cuisine: American
Ingredients: 1 boneless beef chuck eye roast (about 3 1/2 pounds), tied with butcher's twine; Kosher salt and freshly ground black pepper; 2 tablespoons vegetable oil; 1 medium onion, roughly chopped; 1 tablespoon dried Italian seasoning; 2 teaspoons crushed red pepper; 6 cloves garlic, roughly chopped; 1/2 cup dry red wine; 5 cups beef stock (or enough to submerge the roast about three-quarters of the way); 2 sprigs fresh thyme; 4 green bell peppers, cut into 1-inch-wide strips; 1/4 cup olive oil; 1 teaspoon granulated garlic; Kosher salt and freshly ground black pepper; 6 soft hinged French rolls (preferably from Turano or Gonnella bakeries); Oil-packed hot giardiniera, for topping