Heat oil in a large, heavy-bottomed pot over medium heat. Add 6 ounces chopped chorizo and cook until crisped, about 10 minutes.
Add 1 chopped onion, 4 cloves chopped garlic, 3 sliced carrots, and 4 sliced celery stalks and cook until vegetables are softened and translucent.
Add 1 pound bag beans the spice packet, 8 cups water, and 2 bay leaves and bring to a boil. Reduce heat to low and simmer, covered, until beans are tender, about 2 hours.
Add 1 bunch chopped kale and 2 tablespoons chopped fresh sage and season with salt and pepper. Cook a few minutes more until kale has softened. Serve with lemon wedges for squeezing over the top.