Time--not wasted gas or energy--is the workhorse behind this soup. Simply sauté a handful of flavorful ingredients, add stock, bring to a boil, slap on the lid and turn off the heat. Walk away and when you come back, open the pot to a soup that tastes like it took hours to prepare. While optional, the Parmesan rind melts into the soup and adds a rich umami flavor. Make sure the lid is on tight though, as the rice will cook more slowly if steam is escaping.
The 'turn off the stove' method relies entirely on residual heat and a tightly sealed pot; ensure your Dutch oven lid is snug to guarantee proper rice cooking. Avoid peeking, as this releases crucial steam. For maximum flavor, use a high-quality chicken broth. The Parmesan rind is excellent for deep umami; if omitted, a splash of fish sauce or a dash of nutritional yeast can offer a similar savory depth. Add the fresh herbs and lemon juice *after* cooking to preserve their vibrant flavor and aroma. Consider browning the chicken lightly before adding if using raw chicken for richer taste, though rotisserie works great for speed.