Creating Slow Cooker Beef and Noodles is simple and straightforward. Follow these steps for a successful dish:

1. Prepare the Beef: Cut the beef chuck roast into 1-inch pieces. This allows for even cooking and tenderness.
2. Brown the Meat: In a skillet, heat olive oil over medium heat. Add the beef pieces in batches and brown on all sides. This step is optional but adds more depth to the flavor.
3. Sauté Onions and Garlic: In the same skillet, add the diced onion and minced garlic. Sauté until the onions are translucent.
4. Combine Ingredients: Transfer the beef, onions, and garlic into the slow cooker. Add beef broth, Worcestershire sauce, dried thyme, salt, and black pepper. Stir to combine.
5. Cook: Cover the slow cooker and set it to low for 6-8 hours or high for 3-4 hours, depending on your available time.
6. Add Noodles: About 30 minutes before serving, stir in the egg noodles and frozen peas and carrots if using. Cover and let cook until the noodles are tender.
7. Adjust Consistency: If the dish is too thick, add a little more beef broth until you reach your desired consistency.
8. Serve: Once done, stir gently and adjust seasonings if necessary.

By following these simple steps, you can create a hearty and satisfying Slow Cooker Beef and Noodles dish that will leave everyone asking for more.