Every couple of weeks we have spaghetti, what The Child calls "Jeffrey 'sghetti." It's usually a mixture of ground turkey and ground beef, sauteed, fat drained off, and tossed with a jar of some kind of marinara-florentine sauce.
Ever since we discovered spaghetti squash, we've taken to serving the sauce over the cooked squash. I don't know that we've ever told The Child he was eating a vegetable (in addition to the spinach in the sauce) rathe than pasta. He hasn't seemed to notice the difference.
Roasting spaghetti squash and shredding it with a fork is little trouble. Eating the squash in place of pasta is an easy way to get in more vegetables.