We're not even slightly vegetarian, except in the Anthony Bourdain way, likely paraphrasing: "If you could cook vegetarian like this, fucking hippies, I'd eat vegetarian every day." Yup.
The thing about competent vegetarian dishes is that they are a pleasure to eat. But it is hard to get a pure "American" vegetarian cuisine from individual cooks that isn't hmm, dreary. The thing about Madison is her recipes are not dreary. I often consult her soups and stews recipes for instance to understand how she is flavoring these w/o meat (and especially, meat stocks).