Instructions: Strip chard leaves from stems, then stack leaves and slice. Roughly chop stems. Heat oil in large pot over medium-high heat. Add onion, fennel, carrots, chard stems and garlic. Cook until onions soften, stirring often, about 12 minutes.

Add 1/2 chard leaves, tomato puree, broth, beans, oregano, red pepper flakes, vinegar and salt. Stir well. Bring to boil then reduce heat and simmer, uncovered, 30 minutes.

Soup should be thick; if it appears too thick, cautiously add more water to taste. Stir remaining chard leaves into hot soup a few minutes before serving and cook until just heated through, about 1 minute. Adjust seasoning to taste.

Serve immediately. Pass pecorino cheese separately.

This recipe yields 6 to 8 main-course servings, 11 to 12 cups.

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