After two years in Brazil I fell in love with the Brazilian Rodizio. To date, the best Brazilian restaurant I know of, with the most authentic Brazilian food, is the Tucanos Brazilian Grill. If you are a meat lover this is the place for you.
I've eaten here well over 10 times. That may not seem like a lot, but it's not the cheapest of restaurants. I wait for my birthday month to make it a little more affordable.
If you or someone in your party is not a meat lover, no worries the buffet offers plenty of options to dine on. There are some very authentic Brazilian options there as well.
My favorite, and perhaps the food I am most anxious for, is the rice and beans. Make sure to get the black beans or Feijoada. The feijoada goes on top of the beans. To make it even more savory, sprinkle some farofa on top of it all. This is a toasted light tan colored seasoning that you can find near the feijoada. If you want to try a taste of northern Brazil, cut up banana in thin slices and put those on top of your heap of rice, beans, and farofa.
Continue creating your authentic Brazilian meal and grab some Brazilian Collards, a cooked type of dark green salad. It is a little bitter and may require an acquired taste to fully appreciate. As I had it often in my sojourn in Brazil, I can testify of its authenticity. Before returning to your table grab a pao de queijo (Cheese Bread), and a palmito (heart of palm) from the salad bar.
If you are not having the meat I at least recommend making the plate I just described. Except, keep in mind that Feijoada does have pork in it. If you are skillful with a ladle you can get the black beans without the chunks of meat. It is worth your efforts.
If you are having the meats, I still recommend getting the meal I explained, because it is packed with flavor and preps your stomach for the deluge of meats to come.
When it comes to the rodizio of meats, get whatever looks good. However, here is my number one recommendation: pass on all chicken slices. Why? Because you can get chicken anywhere. Save the room you would take up with chicken for some of the finer cuts of meat.
And get as much grilled pineapple as you can!
I've never been to Tucanos when it was not busy. Make sure to make a reservation before going, otherwise you best plan on waiting for 20-40 minutes.