To the bowl of your food processor, add the pine nuts, garlic cloves, sea salt, paprika, smoked paprika, onion powder, garlic powder, black pepper, Parmesan (if using), and nutritional yeast (if using).
Pulse a few times to get things going, then process until everything comes together and becomes small flecks.
Now add the roasted red bell pepper and the liquid smoke to the food processor, and process until the pepper breaks down to small flecks. It will release all of its juices and turn the mixture into a sauce!
Stop, scrape down the sides of the food processor bowl with your spatula, and process again. You want the sauce to be mostly smooth, but there will still be some texture. And remember, if the sauce tastes a little salty at this point, that is good! This sauce has to flavor a whole pound of pasta, so we want the flavor to be intense now, because it will dilute when spread out over the pasta. Sauce is done!