Begin by washing the kale thoroughly to remove any dirt or grit. Chop it into bite-sized pieces and set it aside. Next, peel and dice the potatoes into small cubes. Slice the turkey sausages into rounds. Halve the garlic clove to release its flavor.
If you have a few extra minutes, you can enhance the flavor by sautéing the sliced turkey sausage in a skillet over medium heat with one tablespoon of olive oil until browned. This step is optional but adds a lovely depth of flavor.
In the slow cooker, combine the chopped kale, diced potatoes, halved garlic clove, and sliced turkey sausage. If you opted to sauté the sausage, add it to the mixture now.
Carefully pour in the vegetable broth, ensuring that all ingredients are submerged. Add the freshly cracked black pepper for a hint of spice.
Finish off by drizzling the remaining tablespoon of extra virgin olive oil over the top. This helps to incorporate healthy fats and enhances the flavor.
Cover the slow cooker with its lid and set it to cook on low for 6-8 hours or on high for 3-4 hours. The longer it cooks, the more flavorful the soup will become.
Once the cooking time is up, remove the halved garlic clove before serving. Give the soup a good stir and taste for seasoning. Adjust with more black pepper if desired. Ladle the warm soup into bowls and enjoy it with crusty bread or a sprinkle of parmesan cheese if you like!