First there was Ritz Mock Apple Pie, which wasn't invented by Ritz but that's all we ever knew. To my surprise, it has an interesting story, going back to the mid-1800s, when apples weren't always easy to come by, & was especially popular during the Depression, when bread scraps were cheaper. For my 30th birthday, Maggie & Rachel made mock apple pie, rice krispie treats & maybe a couple of other childhood treats. Not that I had eaten mock apple pie before, but there it was on the back of the Ritz box my entire life.
Maggie has extended the concept with Mock Leek Soup, that has broccoli, potato & a few other things, no leeks, which are too hard to clean. No wonder the Welsh wear them in their hats instead. You can ask her for the recipie.