INGREDIENTS
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Collard greens replace the usual kale or spinach in this vegetarian minestrone soup. In addition to the canned diced tomatoes and collard greens, other vegetables, such as carrots, cauliflower, celery, or green beans, can be added.
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1 tablespoon olive oil
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1 medium onion, chopped
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2 cloves garlic, minced
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Coarse salt and ground pepper
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2 tablespoons tomato paste
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1 pound (about 2 bunches) collard greens, stalks removed, leaves coarsely chopped
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1/2 teaspoon dried thyme
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1/2 teaspoon red-pepper flakes
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2 cans (19 ounces each) white beans, rinsed and drained
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1 can (14 1/2 ounces) diced tomatoes, in juice
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Grated Parmesan, for serving (optional)