Here are two types of snacks that are yummy, salty and easy to make in the oven. I myself didn't use them for snacks, but as a side when we had tacos at home instead.
Parma ham and cheese chips, super easy to make and very tasty! Just put little piles of cheese, I mixed edam and a spicy cheese together, and parma ham cut into smaller pieces on an over tray, and slowly roast it until crunchy!
My favourite cheese - Morroccan Spice