In a wide skillet or paella pan, heat olive oil over medium heat and brown the chorizo slices until they release their fragrant oils.
Add the diced onion and bell pepper to the pan, sautéing until softened and slightly caramelized.
Stir in the minced garlic, smoked paprika, and tomato puree, cooking for 2 minutes to develop a rich base.
Add the Bomba rice, stirring to coat every grain in the smoky oil and aromatics.
Pour in the seafood broth and add the saffron threads, sea salt, and black pepper; bring to a gentle simmer.
Lower the heat and cook undisturbed for 10-12 minutes until the rice has absorbed most of the liquid.
Nestle the shrimp and mussels into the rice, then scatter the peas over the top.
Cover the pan for 5 minutes until the shrimp are pink, the mussels have opened, and a golden crust (socarrat) forms on the bottom of the rice.
Garnish with fresh parsley and serve with a bright lemon wedge.