Ingredients

1 1/4 c. dried white beans

3 tbsp. extra-virgin olive oil

2 oz. pancetta

2 medium shallots

2 large celery ribs

1 medium onion

1 large carrot

1/2 fennel bulb

4 clove garlic

1/2 tsp. crushed red pepper

2 bay leaves

2 tbsp. tomato paste

1 can plum tomatoes

1 qt. low-sodium chicken broth

Salt and freshly ground pepper

1 c. baby arugula

1/2 c. flat-leaf parsley leaves

1 tbsp. fresh lemon juice

Preparation

Step 1In a pot, cover beans with 2 inches water and bring to a boil. Simmer over low heat until tender, about 2 hours; add water to keep beans covered. Drain beans and reserve cooking liquid.Step 2Meanwhile, in another pot, heat 2 tablespoons oil. Add pancetta and cook over moderate heat until crisp, 4 minutes. Add shallots, celery, onion, carrot, and fennel, and cook until softened. Add garlic, crushed pepper, and bay leaves and cook, stirring, until fragrant. Add tomato paste and cook, stirring, 2 minutes. Stir in tomatoes and broth; bring to a boil. Simmer over low heat 1 hour. Add beans and enough cooking liquid to thin out soup. Discard bay leaves; season with salt and pepper.Step 3In a bowl, toss arugula and parsley with lemon juice and remaining 1 tablespoon oil. Season with salt and pepper. Serve soup in bowls; top with salad.