01 -
Season the 3 lbs boneless beef chuck roast generously with salt and freshly ground black pepper. Place the seasoned roast into your slow cooker. Add the 1 large yellow onion, thinly sliced, and 4 cloves garlic, minced, around the beef.
02 -
Pour in 4 cups low-sodium beef broth, 1/4 cup Worcestershire sauce, and 1 tbsp low-sodium soy sauce. Add 1 tsp dried thyme and 1 bay leaf. This liquid forms the rich au jus for your Slow Cooker French Dip Sandwiches with Garlic Mushrooms.
03 -
Cover the slow cooker and cook on low for 6 hours, or on high for 3-4 hours, until the beef chuck roast is incredibly tender and easily shredded with a fork. This slow cooking process is key for the best Slow Cooker French Dip Sandwiches with Garlic Mushrooms.
04 -
Carefully remove the cooked beef from the slow cooker and shred it using two forks. Skim any excess fat from the au jus in the pot. Return the shredded beef to the au jus to keep warm and absorb more flavor while you prepare the mushrooms.
05 -
In a large skillet, melt 2 tbsp unsalted butter over medium heat. Add the 1 lb cremini mushrooms, sliced, and 3 cloves garlic, minced. Sauté for 7-10 minutes until the mushrooms are tender and nicely browned. Stir in 1/4 cup fresh parsley, chopped.
06 -
Preheat your broiler. Split 6 hoagie rolls and fill each with a generous portion of the shredded beef and 12 slices provolone cheese (2 per sandwich). Place on a baking sheet and broil for 1-2 minutes, until the cheese is melted and bubbly.
07 -
Serve these delicious Slow Cooker French Dip Sandwiches with Garlic Mushrooms immediately. Provide individual small bowls of the warm au jus for dipping, alongside a hearty serving of the umami-rich garlic mushrooms.