In a medium saucepan, heat oil over medium. Add garlic and cook, stirring until fragrant, 1 minute. Add tomatoes with juice and 2 cups water; bring to a boil. Add pasta and boil 5 minutes; stir in cauliflower, zucchini, and thyme. Season with salt and pepper. Reduce heat; simmer 5 minutes or until vegetables are tender. Serve.
Cool soup completely before dividing between two airtight containers; refrigerate up to overnight. Reheat over low. Add water as needed to adjust consistency.