Our Sunday dinners are mostly vegetarian now, since our son comes home often on that night (to prevent malnutrition), and he's a veg-head. Not a vegan, thank goodness. Don't really mind, we were both vegetarians for years, but then fell off the wagon.
So it's simple things like lentil stew, creamed spinach, macaroni and cheese, bean burritos. For Thanksgiving and Xmas it's Walnut/Cheddar balls with Bechamel sauce, with as many tradition trimmings as possible.
Joanna, what's the trick to roasting a turkey breast, I've never tried? When the boy's not around, I'd love to try it.