Add the beef stew meat to the bottom of the slow cooker.
Layer the apples, parsnips, onion, and carrots on top of the beef.
In a small bowl, whisk together the beef broth, tomato paste, thyme, salt, and pepper until smooth.
Pour the broth mixture over the ingredients in the slow cooker.
Cover and cook on low for 8 hours until the beef is fork-tender and the vegetables are soft.
Stir gently before serving to combine the flavors.