I cook for me and the omnivore family, so I try to keep our menus simple more often than not. I don't cook two different meals often. We all eat the same sides and occasionally the same entrees. The additional protein source, if needed, is usually the side. We all like lasagna, so when veggie lasagna is planned, there may be an additional sauce for the omnis to pour over their servings.
I'll add more menu ideas and recipes here as time goes by. There are also recipes posted on my Vegetarian Examiner page.