Slow Cooker Beef Vegetable Noodle Soup is a hearty, comforting meal that’s perfect for chilly days. Tender beef, vegetables, and noodles simmer together in the slow cooker for a rich, flavorful soup with very little hands-on effort. It’s an easy, satisfying dinner the whole family will love.
In an 8-quart slow cooker, add the beef, carrots, celery, onion, salt, thyme, basil, bay leaf, garlic, broth, and diced tomatoes. Stir to combine. If you don't have an 8-quart slow cooker, you can make this in a 6-quart slow cooker, but you will need to cook the noodles separately and just add some to each bowl and then add in the soup.
Cover and cook on low for 7-8 hours or high for 4-5 hours.
Stir in the egg noodles. Turn to high and cover. Cook for 101-2 minutes until the noodles are tender.
Whisk together the flour and extra beef broth until smooth. Stir the mixture into the slow cooker until well-combined. Add in the peas and stir together. Cover and cook on high for 4-5 minutes. Taste and season with additional salt and pepper, if needed.