Heat the extra virgin olive oil in a paella pan or large wide skillet over medium heat.
Add the diced yellow onion and red bell pepper, sautéing until the vegetables are softened and translucent.
Stir in the minced garlic and smoked paprika, cooking for 30 seconds until the spices are toasted and aromatic.
Add the tomato puree and cook for 2 minutes, allowing the sauce to thicken and darken slightly.
Stir in the Bomba rice, ensuring every grain is well-coated with the tomato and oil mixture.
Pour in the seafood stock and add the saffron threads, sea salt, and black pepper.
Bring the liquid to a gentle boil, then reduce the heat to low and simmer undisturbed for 10 minutes.
Arrange the shrimp, mussels, and green peas evenly over the top of the rice.
Cover the pan tightly and cook for another 8 to 10 minutes until the shrimp are pink, the mussels have opened, and the rice is tender.
Remove from heat and let rest for 5 minutes before garnishing with fresh parsley and serving with a lemon wedge.