Please, please prescribe me gluten-free food

I'm three and half years into a lifelong diet. It's not to lose weight or build muscle, and there are no cheat days—no, not even for a freshly-baked chocolate croissant that I can smell a block away. I get a metal probe put down my throat every year so my doctor can confirm that I'm really, truly, 100 percent adhering to my diet. As if that wasn't awesome enough, I also get to pay anywhere from 30-500 percent more for basic food.