Heat the olive oil in a small paella pan or heavy skillet over medium heat.
Add the diced chorizo and sauté for 2 minutes until the oils are released.
Stir in the diced onion and bell pepper, cooking until softened, about 3-4 minutes.
Add the minced garlic, smoked paprika, and saffron threads, stirring for 30 seconds until fragrant.
Add the Bomba rice to the pan and stir to coat each grain in the oil and spices, toasting for 1 minute.
Pour in the chicken bone broth, sea salt, and black pepper; stir once to distribute and bring to a simmer.
Reduce heat to low and let the rice simmer undisturbed for 10 minutes.
Nestle the shrimp and mussels into the rice and sprinkle the peas over the top.
Cover the pan and cook for another 5-8 minutes until the shrimp are pink and the mussels have opened.
Increase the heat to medium-high for the last 60 seconds to develop the 'socarrat' (crispy rice crust) on the bottom.
Remove from heat, let rest for 5 minutes, and serve with a fresh lemon wedge.