Since the chicken is cut into such small pieces, it cooks in no time. Add it to the pot, simmer very briefly, and then serve the soup right away before the chicken has a chance to overcook.Plus: More Soup Recipes and Tips
In a large pot, heat the oil over moderately low heat. Add the carrot, onion, celery, and garlic and cook, stirring occasionally, until the vegetables start to soften, about 5 minutes. Add the broth, rice, and salt. Bring to a boil. Reduce the heat and simmer, partially covered, for 10 minutes.
Add the escarole to the pot. Bring to a simmer and cook until the escarole is almost tender, about 5 minutes. Add the chicken and pepper. Bring to a simmer and continue simmering for just 1 minute. The chicken should be done.
Remove the pot from the heat. Stir in the parsley and Parmesan.
Variation For a richer soup, stir two well-beaten eggs into the pot along with the parsley and Parmesan cheese (after removing the pot from the heat).
Avoid a red wine—its tannins will accentuate the bitterness of the greens. Instead, try a rich Tocai Friulano, the nuttiness of which will complement the escarole.