Trim any excess fat from the chuck roast and cut it into 1 ½ inch cubes. Season the beef generously with salt and pepper.
2 ½ to 3 pounds chuck roast, 1 teaspoon salt
Heat the oil in a large, heavy-bottomed pan over medium heat. Add the beef in batches, searing each piece until browned on all sides, about 2-3 minutes per side. Transfer the seared beef to the slow cooker.
2 to 3 tablespoons cooking oil
Add the diced potatoes, carrots, mushrooms, onions, and garlic to the slow cooker on top of the beef.
3 russet potatoes, 3 carrots, 6 ounces baby bella mushrooms, 1 large yellow onion, 5 garlic cloves
Sprinkle the cumin, oregano, and paprika over the vegetables.
½ teaspoon ground cumin, ½ teaspoon dried oregano, ½ teaspoon sweet paprika
In a large bowl or measuring cup, whisk together the beef broth, red wine (or additional broth), tomato sauce, and Worcestershire sauce. Pour the mixture over the beef and vegetables in the slow cooker. Add the bay leaves.
2 ½ cups beef broth, ½ cup red wine, 2 tablespoons tomato sauce, 1 ½ tablespoons Worcestershire sauce, 2 bay leaves
Cover the slow cooker and cook on LOW for 8 hours or on HIGH for 4 hours, until the beef and vegetables are tender.
About 30 minutes before the cooking time is up, remove 2 cups of the broth from the slow cooker. In a separate bowl, gradually whisk in the flour to the broth, ensuring there are no lumps. Pour the flour mixture back into the slow cooker and stir to combine.
½ cup all-purpose flour
Stir in the green beans, cover, and continue cooking for an additional 15 minutes on HIGH or 30 minutes on LOW. Taste and add salt and pepper.
½ cup green beans
Remove the bay leaves, then ladle the stew into bowls. Garnish with fresh parsley, oregano, green onions, or chives, and enjoy!