2Combine broth, tomatoes, kidney beans, onion, carrots, celery, green beans, zucchini, garlic, parsley, oregano, salt, thyme, and pepper in a 6-quart slow cooker. Cover and cook on Low for 6 to 8 hours.
3Bring a large pot of lightly salted water to a boil. Cook elbow macaroni in the boiling water, stirring occasionally, until cooked through but firm to the bite, 8 minutes; drain.
