I've made it twice so far, and I have one alteration to suggest:
*** After sauteing the onions and garlic in the olive oil, throw them in the blender along with the pureed roasted red peppers.Get it all nice and itty bitty. THEN put it back in the saucepan, add the cream, and pour over pasta. YUM. We roast the red peppers on a metal grate right over our gas burners and follow the rest of her instructions, and it works smashingly. This is delicious enough to just enjoy as a main dish, or you can add in chicken along with it; either way.