• 1 pound kielbasa sausage, sliced into bite-sized pieces
• 2 tablespoons extra-virgin olive oil
• 3 medium leeks, sliced into ⅛ inch rounds, white and pale green parts only
• 2 medium carrots, peeled and diced
• 1 stalk celery, diced
• 1 small green cabbage, chopped into bite-sized pieces
• 3 cloves garlic, minced
• 6 cups chicken or vegetable stock
• 1 pound red potatoes, diced
• 1 tablespoon Italian seasoning
• 1 bay leaf
• Kosher salt and freshly-cracked black pepper

Add sausage to a large stockpot and cook over medium-heat for 5-6 minutes, stirring and flipping occasionally, until the sausage is lightly browned.  Use a slotted spoon to transfer the sausage to a separate plate, and set aside.

Add the olive oil, leeks, carrots and celery to the pan, and stir to combine.  Sauté for 5 minutes, stirring occasionally.  Then add the cabbage and garlic, and sauté for 4 more minutes, stirring occasionally.

Add the stock, potatoes, Italian seasoning, bay leaf, cooked sausage, and stir to combine.  Continue cooking until the soup reaches a simmer.  Then reduce heat to medium-low, cover, and simmer for 15 minutes, or until the potatoes are cooked and tender.  Taste and season with a few generous pinches of salt and black pepper as needed.

Serve warm.  Or refrigerate in sealed containers for up to 3 days, or freeze for up to 3 months.