Place the beef cubes, potatoes, carrots, onion, and garlic into the slow cooker.
In a bowl, whisk the beef broth, tomato paste, flour, Italian seasoning, salt, and black pepper until smooth.
Pour the broth mixture over the ingredients in the slow cooker and stir gently to combine.
Cover and cook on low for 8 hours until the beef is tender and the gravy has thickened.
Stir once more before serving to distribute the gravy evenly.