Soak the chickpeas overnight in water.
Drain and rinse the soaked chickpeas.
In a large pot, heat a tablespoon of olive oil over medium heat.
Add the diced onion and sauté until translucent.
Stir in the garlic, carrots, and celery, cooking until just softened.
Add the soaked chickpeas, broth, cumin, smoked paprika, and bay leaf.
Reduce heat and simmer for 45 minutes to an hour, or until chickpeas are tender.
Remove the bay leaf and stir in fresh greens and lemon juice.
Season with salt and pepper to taste, then serve hot.