Cook chorizo and onion in a 5-quart Dutch oven over medium heat for 8 minutes, breaking the sausage into small crumbles and cooking it to 160°F. Drain excess fat, leaving about 1 tablespoon.
Add green pepper and cook for 4 minutes. Stir in garlic, tomato paste, cumin and rice for 1 minute.
Add broth, beans and salt and bring to a simmer. Cover tightly and cook over low heat for 18 minutes without stirring.
Scatter peas over the rice, cover and cook for 3 minutes more until the rice is tender.
Remove from the heat and rest covered for 5 minutes. Fluff gently to distribute the chorizo, beans and peas, then serve in 5 bowls.