O Cachorro Quente e o Hambúrguer (The hot dog and the hamburger)
I don't think you need pictures of these. But it is a very common street food in Salvador. there is a hamburger stand right outside a public high school on my way to ACBEU. It's right on the sidewalk. But it's different. They have a little bench and a TV so it doesn't have to be street food to go, you can stay on that singular bench and watch some cartoons or movies. I've actually seen that in Mexico too.
Footnote: Cachorros Quentes and Hambúrguers are not a traditional Brazilian food. Just to not confuse anyone, just in case.