Drippy French Dip Sandwiches

Name: Drippy French Dip Sandwiches
Ingredients: 2 tablespoons kosher salt; 3 tablespoons freshly ground black pepper; 1 teaspoon ground oregano; 1 teaspoon ground thyme; 1 small boneless rib loin roast (4 to 5 pounds); 5 cloves garlic, minced; 2 large onions, halved and sliced; 1 packet French onion soup mix; 1 can beef consomme; 1 can beef stock; 2 tablespoons dry sherry; 2 tablespoons Worcestershire; 1 tablespoon soy sauce; 8 crusty deli rolls; Butter, softened, for toasting; 8 slices provolone cheese, optional