Ingredients

  • 1 large leek, washed and thinly sliced (2 cups)
  • 1 celery rib, sliced
  • 1 large carrot, sliced thinly
  • 1 garlic clove, finely chopped
  • 1 large thyme, sprig
  • 2 tablespoons extra-virgin olive oil
  • 12 lb boiling potato, diced
  • 12 lb swiss chard, coarsely chopped
  • 8 cups water
  • 12 lb zucchini, cut into 1/2-inch pieces
  • 14 lb green beans, trimmed and cut into 1-inch pieces
  • 34 cup medium pasta shell
  • 1 small tomatoes
  • 1 cup packed basil leaves
  • 12 cup packed flat leaf parsley
  • 2 garlic cloves, finely chopped
  • 2 tablespoons extra-virgin olive oil
  • 1 cup coarsely grated swiss cheese (about 1/2 lb)

Method

  • Wash and slice the vegetables.
  • Cook leek, celery, carrot, garlic, and thyme sprig in oil with 1/2 teaspoon salt and 1/4 teaspoon pepper in a 5-to 6-quart heavy pot over medium heat, stirring occasionally, until vegetables brown and stick to bottom of pot, 10 to 15 minutes.
  • Add potatoes and chard stems with 1/2 teaspoon salt and cook, stirring occasionally, until beginning to soften, about 5 minutes.
  • Add water and bring to a boil, stirring and scraping up brown bits.
  • Stir in zucchini, green beans, pasta, chard leaves, and 1/4 tsp salt and simmer, uncovered, until pasta is al dente and vegetables are tender, about 10 minutes.
  • Discard thyme sprig.
  • Meanwhile make pistou:.
  • Heat a dry small skillet (not nonstick) over medium heat until hot, then char tomato on all sides.
  • Core tomato, then puree with basil, parsley, and garlic in a food processor.
  • Add oil and cheese and blend well.
  • Remove soup from heat and stir in half of pistou and salt and pepper to taste.
  • Serve soup with remaining pistou, and crispy toasted bread.