Heat oil in a large saucepan over medium-high heat. Add kielbasa and onion; cook, stirring, for 2 minutes. Add garlic powder, cumin, thyme, smoked paprika, salt and pepper; cook, stirring, until fragrant, about 30 seconds. Add broth, kale and beans. Cover and bring to a boil. Uncover, reduce heat to maintain a simmer and cook until the kale is tender, 5 to 7 minutes.