Heat remaining olive in the same Dutch oven. Add onions and cook until soft, about 3-4 minutes. Add garlic, carrots, zucchini and mushrooms. Cook an additional 5-7 minutes or until vegetables soften. Season vegetables with thyme, salt, and pepper.
Stir in beef broth, crushed tomatoes, and water (fill the tomato can with water), bring to a slight boil. Add pasta and reduce heat. Cook until pasta is al dente.