Heat the extra-virgin olive oil in a deep skillet over medium-high to high heat - make sure to choose a pan with a tight fitting lid. Add the chorizo and render some of its fat, 1 to 2 minutes then add the chicken and brown, 2 to 3 minutes. Add the onions, garlic, red pepper flakes, bay, thyme and shrimp, season with salt and black pepper, and cook 3 to 4 minutes more. Add the stock and stir in the turmeric and saffron. Bring the stock to a boil, about 1 minute, then stir in the couscous, peas, lemon zest and piquillo peppers. Cover and turn off the heat. Let stand for 5 minutes then fluff with a fork. Remove the bay and thyme stems before serving. Top each serving of paella with some chopped parsley, hot sauce and juice from the lemon wedges.