Heat oven to 400°F. Heat 2 tbsp. oil in skillet over medium-high heat. Add onions and chorizo to pan. Cook, stirring occasionally, until onions soften and chorizo starts to brown, about 10 minutes. Stir in sofrito and sazonador total; cook until fragrant, about 30 seconds more; set aside until cool.
In medium bowl, gently mix together meatloaf mix, tomato sauce, cooked rice, reserved sofrito mixture, pine nuts and 2½ tsp. adobo until combined.
Coat peppers with remaining oil; sprinkle cavities with adobo. Transfer peppers to 9”x13” baking dish. Divide meat mixture evenly among pepper cavities. Cook until peppers are soft and meat mixture is cooked-through (internal temperature should register 165°F on quick-read thermometer), about 1 hour. Let sit 10 minutes before serving.
To keep your peppers standing upright, try this: Before stuffing the peppers, cut a very thin slice from the base to even out the bottom. Once cooked, the pre-leveled peppers will stand up straight and tall and the tasting filling will stay inside where it belongs