Miss Tarr had to ""blubber down"" and returned to her ""skinny-but-me-self"" on a carbohydrate counting ""Fat Seat Plan."" And if her rather blowsy journalese doesn't frighten you off in five minutes, you will find the title justified: these are definitely gourmet dishes, from green onions in lemon clam sauce to shrimp sate oriental, all tossed off in a few minutes and designed for eating alone (and liking it) to entertaining.