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Mama Teresa's Vegetable Soup

This authentic Italian vegetable soup, inspired by the traditional recipes of Mama Teresa, is a masterclass in coaxing deep flavour from simple, seasonal ingredients. This vegetarian dish centres on a vibrant medley of fresh courgette, celery and vine-ripened tomatoes, all brought together in a light yet nourishing broth. The addition of aromatic Mediterranean herbs like oregano and flat-leaf parsley ensures every spoonful is fragrant and deeply comforting, making it a perfect choice for a wholesome midweek lunch or a lighter evening meal.

What sets this homemade soup apart is the classic Italian technique of whisking an egg with Parmigiano-Reggiano into the hot broth. This creates a beautifully silky, slightly creamy texture without the need for heavy dairy. It is a heart-healthy and sustaining option that pairs wonderfully with a slice of crusty sourdough. Serve it warm with a generous drizzle of high-quality extra-virgin olive oil and an extra grating of cheese for a truly rustic finish.

Continue reading below

Ingredients for Mama Teresa's Vegetable Soup

  • 170g 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 (230g)

  • 2 medium courgette (350g 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 teaspoons coarsely ground black pepper

  • 1 large egg

  • 2 tablespoons finely grated Parmigiano-Reggiano plus additional for serving

How to make Mama Teresa's Vegetable Soup

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.

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.

Meanwhile, peel potato and cut into 1/4-inch dice.

Add potato to onion mixture along with courgette 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.

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.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 17 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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