01 -
Heat a large skillet over medium-high heat. Season beef chuck roast liberally with salt and pepper. Sear the roast on all sides for approximately 3–4 minutes per side until deeply browned.
02 -
Arrange sliced onion and minced garlic evenly on the bottom of the slow cooker to form a flavorful base.
03 -
Place the browned beef chuck roast atop the onion and garlic layer inside the slow cooker.
04 -
Combine beef broth, French onion soup, Worcestershire sauce, dried thyme, and dried rosemary in a mixing bowl. Pour the mixture over the beef in the slow cooker.
05 -
Cover and cook on low for 8 hours or on high for 4 hours, until the beef is tender and shreds easily with a fork.
06 -
Remove the beef from the slow cooker and transfer to a cutting board. Shred the meat into bite-sized pieces using two forks.
07 -
Strain the remaining cooking liquid to remove solids, reserving the clear au jus. Keep the au jus warm for serving.
08 -
Slice the hoagie rolls lengthwise. Pile shredded beef into each roll and top each with 2 slices of provolone cheese.
09 -
Place assembled sandwiches under a broiler for 2–3 minutes, or until the cheese has melted and is bubbling, or use a sandwich press until cheese is melted.
10 -
Serve sandwiches hot, garnished with chopped parsley. Accompany with a side of warm au jus for dipping.