If I had mad Photoshop skills, I could turn this dish bright green. Scary green, even. Fortunately, I don't have that ability, and anyway, I want you to see how this luscious spaghetti squash really looks once it's been tossed in pesto and sits for a few minutes. Not gorgeous, I admit, but the garlicky aroma and melty cheese and crunchy cashews and creamy beans, all together, more than make up for the color. I'm rediscovering spaghetti squash, a low-calorie alternative to pasta, and a vegetable plentiful in the market at least three seasons of the year. Although I've been cooking spaghetti squash in my new pressure cooker, you can bake it in the oven, and either method works perfectly in this dish. It's not yet fresh basil season here in New England, so you have my permission to substitute good quality store-bought pesto if necessary. If you're not vegetarian and want to tuck a bit of shredded cooked chicken or shrimp in here, you have my permission to do that, too.