Mama Teresa'S Vegetable Soup

• 6 oz plum tomatoes (2 or 3 medium)
• 2 tablespoons extra-virgin olive oil plus additional for serving
• 1 small onion, chopped
• 1 large yellow-fleshed potato such as Yukon Gold (1/2 lb)
• 2 medium zucchini (3/4 lb total), quartered lengthwise, then cut crosswise into 3/4-inch pieces
• 1 celery rib, cut into 1/2-inch pieces
• 3 1/2 cups water
• 1 1/2 tablespoons chopped fresh basil
• 1 1/2 tablespoons chopped fresh flat-leaf parsley
• 1 teaspoon dried oregano, crumbled
• 1 1/4 teaspoons coarse gray sea salt
• 1/4 teaspoon coarsely ground black pepper
• 1 large egg
• 2 tablespoons
• Parmigiano-Reggiano plus additional for serving

1. Cut a shallow X in bottom of each tomato with a sharp paring knife and blanch tomatoes in a 2- to 3-quart saucepan of boiling water 20 seconds. Transfer tomatoes with a slotted spoon to a cutting board and, when cool enough to handle, peel, beginning from scored end, with knife, then seed and chop.
2. Heat oil in a 4-quart heavy pot over moderately high heat until hot but not smoking. Add onion and tomatoes, then reduce heat to moderate and cook, stirring occasionally, until onion is softened, 4 to 5 minutes.
3. Meanwhile, peel potato and cut into 1/4-inch dice.
4. Add potato to onion mixture along with zucchini and celery and cook, stirring occasionally, 5 minutes. Add water, herbs, sea salt, and pepper and bring to a boil, uncovered. Reduce heat and simmer, uncovered, stirring occasionally, until vegetables are very tender, 30 to 35 minutes. Remove from heat.
5. Whisk together egg and cheese in a bowl until combined well, then add to soup in a stream, stirring. Divide among 4 bowls and serve with olive oil and cheese.

tomatoes, extravirgin olive oil, onion, yellowfleshed, zucchini, celery, water, fresh basil, parsley, oregano, coarse gray sea, ground black pepper, egg, serving

Taken from www.epicurious.com/recipes/food/views/mama-teresas-vegetable-soup-233968 (may not work)