Brown been on all sides. In a slow cooker combine the carrots, potatoes, and red pepper. Pour tomatoes over the top. In a small bowl whisk the flour, tomato paste and broth until smooth. Stir in the "additional broth", salt, garlic, pepper, thyme and pour into slow cooker. Top with beef cubes.
Toss in two bay leaves (remove before serving)
Cover and cook on low for 6 hours or until meat is tender.