Preheat your oven to 350F and place your chorizo on a tray and cook for 25-30 minutes, flipping halfway through.
While your chorizo is cooking, make your chimichurri sauce. To do so, add one bunch of parsley and cilantro into a food processor. Add two garlic cloves, salt, black pepper, oregano, onion powder, lime, and olive oil. Pulse the food processor for about 1-2 minutes to combine all the ingredients.
When there are about five minutes left in the oven for your chorizo to finish cooking, cut your bread rolls in half and place in the oven to toast.
Once done, remove the chorizo and the rolls. Slice your chorizo in half, and then cut in half again length wise, and place two pieces of chorizo on a roll.
Add the chimichurri on top. Serve and enjoy!