1poundcooked chicken sausagehalved lengthwise and sliced
Pumpkin seeds and grated Parmesanfor serving, optional
In a very large soup pot or Dutch oven, heat the oil over medium heat. Add the leeks, season with salt and pepper, and sauté for about 8 minutes until they are wilted. Raise the heat to high, add the broth and the crushed tomatoes and bring to a simmer. Add the split peas, return to a simmer, then lower to the heat simmer, partially covered for 30 minutes.
Add the rice and simmer for another 10 minutes, then add the couscous and the sausage and simmer for another 15 minutes until the grains and the peas are tender. Ladle into bowls, and top with pumpkin seeds and Parmesan as you like.