Slow Cooker Vegetarian Minestrone
Ingredients:
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6 cups vegetable broth
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1 (28 ounce) can crushed tomatoes
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1 (15 ounce) can kidney beans, drained
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1 large onion, chopped
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2 ribs celery, diced
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2 large carrots, diced
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1 cup green beans
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1 small zucchini
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3 cloves garlic, minced
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1 tablespoon minced fresh parsley
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1 ½ teaspoons dried oregano
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1 teaspoon salt
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¾ teaspoon dried thyme
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¼ teaspoon freshly ground black pepper
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½ cup elbow macaroni
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4 cups chopped fresh spinach
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¼ cup finely grated Parmesan cheese, or more to taste