Heat the olive oil in a large pot over medium heat. Add the lamb cubes and cook until browned on all sides, about 6 to 8 minutes.
Add the diced onion and minced garlic to the pot. Stir and cook until the onion softens, about 5 minutes.
Sprinkle in the smoked paprika and stir for 1 minute to coat the meat and vegetables.
Pour in the broth. Bring the mixture to a simmer, then cover and cook for 45 minutes until the lamb is tender.
Stir in the white beans and chopped kale. Simmer uncovered for 10 minutes until the kale wilts and the beans warm through.
Taste and season with salt and black pepper as needed.