1. Wash the collard greens and cut them into small pieces.
2. Heat the olive oil in a large skillet over medium heat. Add the onion and cook until softened, about 5 minutes.
3. Add the garlic, red pepper flakes, smoked paprika, cumin, and salt. Cook for 1 minute, stirring often.
4. Add the collard greens and stir to combine. Cook for 5 minutes, stirring often.
5. Add the white wine vinegar, chicken broth, and lime juice. Bring to a simmer and cook for 10 minutes, stirring often.
6. Serve hot.