That lasagne looks great.
Speaking only for myself, I struggle with carb-centric mains if there’s no hit of protein elsewhere in the meal. I tend to feel really crappy for a while afterward 
Because of that, I tend to offer proteiny apps in this sort of situation. I’ve made cocktail meatballs as an app in this situation, specifically my favorite Meatball Shoppe recipe, just smaller. They can be made ahead, so usually I offer them with some Italian olives and crudités or something similar.
