This is the easiest, tastiest, most satisfying dinner I've made this fall (okay, so fall just started, but still). If you're a purist and always make your own marinara sauce, this may feel like "cheating", but I'm totally fine with that - and you can always use your own homemade sauce instead of the jarred variety in this recipe. This cheesy baked spaghetti squash is the ultimate healthy comfort food - the top is ooey gooey cheesy melty, but underneath you've got some major veggie action hiding. And there are only 4 ingredients - super easy weeknight meal. This was so good I'm making it again tonight - and probably tomorrow night, too (hey, if the jar of marinara is already opened...). Served with a crisp green salad, this is a great, filling, comforting, tasty, healthy dinner. And leftovers aren't so shabby, either - after dinner just scoop out the remaining squash and refrigerate - reheat the next day and you've got lunch. Voila. So easy, so cheesy, so good.