Using a large heavy bottom skillet or pot,heat the oil until it starts to shimmer,add the onions and shallots,garlic,saute for 2-3 minutes,add the vegetables and spices including the sazon or old bay,continue to saute for 2-3 minutes more.
Add the rice and saute to coat well,2-3 minutes.add the stock,tomato paste,hot sauce and cover leaving it ajar so you can let the steam escape,lower the heat to a simmer.
When the rice is almost finished(about fifteen minutes out) add the chicken,sausage and the shrimp.continue to cook until shrimps are just done and the dish is heated through.Serve in bowls with the chopped parsley as a garnish and serve with warm cornbread and butter!! Enjoy!! :)