This Italian “Penicillin” Soup is a nourishing, vegetable-packed dish known for its comforting and restorative qualities. Loaded with fresh vegetables, herbs, and a bright splash of lemon, it’s light yet satisfying—perfect when you want something warm, healthy, and full of flavor.
Ingredients
- 3 tbsp olive oil
- 1 medium onion, finely chopped
- 4 cloves garlic, minced
- 2 carrots, diced
- 2 celery stalks, diced
- 1 medium potato, peeled and diced
- 1 zucchini, diced
- 1 cup chopped kale or spinach
- 6 cups vegetable or chicken broth
- 1 tsp dried thyme
- 1 tsp dried rosemary
- 1 bay leaf
- Salt and pepper, to taste
- Juice of 1 lemon
- Fresh parsley, chopped (for garnish)
- Optional: grated Parmesan cheese
Instructions
1. Sauté the Aromatics
Heat olive oil in a large pot over medium heat.
Add onion, garlic, carrots, and celery.
Cook for 5–7 minutes until softened and fragrant.
2. Add Potatoes & Herbs
Stir in diced potato, thyme, rosemary, and bay leaf.
Cook for 2–3 minutes to release the herb flavors.
3. Add Broth & Simmer
Pour in the broth and bring to a boil.
Reduce heat and simmer for 15–20 minutes, until potatoes and carrots are tender.
4. Add Remaining Vegetables
Stir in zucchini and kale (or spinach).
Simmer another 5–7 minutes until greens are tender.
5. Finish & Season
Remove the bay leaf.
Season with salt, pepper, and fresh lemon juice for brightness.
6. Serve
Ladle into bowls and garnish with fresh parsley.
Top with grated Parmesan if desired.
Why It’s Called “Penicillin Soup”
This soup is packed with ingredients known for their comforting and immune-supporting properties:
- Garlic & onion → natural antibacterial benefits
- Vegetables → vitamins and antioxidants
- Warm broth → soothing and hydrating
- Lemon → adds vitamin C and freshness
Why You’ll Love It
- ✔ Light yet filling
- ✔ Full of fresh, wholesome ingredients
- ✔ Easy one-pot recipe
- ✔ Naturally healthy and customizable
- ✔ Perfect for cold days or when feeling under the weather
Tips & Variations
- Add shredded chicken for extra protein
- Stir in pasta or rice for a heartier version
- Use beans (like cannellini) for a vegetarian boost
- Add chili flakes for a little heat
- Swap kale for spinach if you prefer a softer texture
Storage
- Fridge: Up to 4 days in an airtight container
- Freezer: Up to 2 months (best without added greens)
- Reheat gently on the stove
Conclusion
This Italian “Penicillin” Soup is simple, wholesome, and deeply comforting. Whether you’re feeling under the weather or just craving something warm and nourishing, this recipe delivers a perfect balance of flavor and goodness in every spoonful.

