My wife is doing this to some degree. She is a pescatarian. As an aside, I have 2 kids who eat any meat and love beef, another who won't eat beef but eats pork, I don't eat any mammal meat, my wife is the pescatarian and we have another kid who is vegan. Meal planning is a nightmare.

One of her favorites is squash and zukes lightly sauteed then simmered briefly in primavera sauce and served over noodles I went on a month long vegan diet with her last year and my favorite dish was coconut curry veggies and tofu served over rice. I usually used zukes and squash but once tried sweet potato cubes for an interesting variation. The hardest part about that diet was prep. Besides being vegan, it was all unprocessed (except I used low fat canned coconut milk). So sauces were made from scratch; that usually took the longest. I love spaghetti squash and often substitute it for pasta (no one else in my family does; my wife eats it as a side dish). Roasted butternut squash with pecans, honey, cinnamon and butter in the cavity is not the lightest fare but man is it good...