Heat the extra virgin olive oil in a small paella pan or heavy-bottomed skillet over medium heat.
Add the diced chorizo and cook for 2-3 minutes until the fat renders and the edges are slightly crispy.
Add the diced onion and red bell pepper to the pan, sautéing for 4 minutes until the vegetables are tender and translucent.
Stir in the minced garlic, smoked paprika, and saffron threads, cooking for 30 seconds until the spices release their aroma.
Add the tomato puree and Bomba rice, stirring constantly for 1 minute to ensure every grain of rice is coated in the oil and spices.
Pour in the chicken broth, sea salt, and black pepper; stir once to distribute, then bring the liquid to a gentle boil.
Reduce the heat to low and simmer undisturbed for 12 minutes, allowing the rice to absorb the liquid and develop a light crust on the bottom.
Gently press the shrimp, cubed cod, and frozen peas into the top of the rice.
Cover the pan with a lid or foil and cook for an additional 5-7 minutes until the shrimp are pink and the cod is opaque.
Remove from heat and let the paella rest, covered, for 5 minutes to allow the flavors to meld before serving.