Rinse kale and tear into small bite-size pieces; and set it aside.
Wash and slice potatoes into 1/4 inch thick slices. In a medium pot. boil sliced potatoes until tender. Drain and set aside.
Sauté onions and garlic together until onions are soft.
In a large pot, crumble and brown the Italian sausage. Drain as much as the fat as you can. Stir in oregano, sauteed onions and garlic, chicken broth, and half-and-half.
Give it a taste and adjust seasonings as needed. Add the potatoes, a splash of heavy cream for richness, then stir in the kale. Add additional chicken broth if needed. Simmer an additional 10-15 minutes, then serve with salt and pepper.