My stepmom used to make a fantastic "toss" for pasta. I don't have the recipe, and it's far too late to call her, but I'll give it my best go.
Heat a tablespoon or two of olive oil in a large skillet over medium heat. Add 1 onion, chopped, and sauté until translucent. Add a handful of julienned sun-dried tomatoes (soak them in hot water if they are very dry, cut back on the oil if they are oil-packed) and a handful of pine nuts. Season with salt and pepper if needed. Stir until warmed through. Toss with pasta. Pass parmesan or feta at the table, along with some sliced basil and kalamata olives if you like them.