SAME Cafe owners Brad and Libby Birky have done the impossible. Not only did they open a restaurant with no prices on the menu and no cash register on the premises (just a box into which customers are asked to put a "donation," paying whatever they can or whatever they choose to), but they've managed to keep it open for more than a year. That's an amazing feat, but what's even more amazing about SAME (which stands for So All May Eat) is the food served here: an ever-changing lineup of hot, fresh and mostly organic dishes good enough to grace any downtown cafe, including apple-and-brie pizza, red beans and rice, chickpea salads, fresh fruit tarts and potato-and-bacon soup. Given the philosophy of the place, your karma can decide whether SAME Cafe offers the best free lunch in Denver, or simply the best bang for however many bucks you choose to give.