In America, particulary the southwest I have two favorite fastfood places.
1. In and Out. Fresh, clean, and tasty. The product actually looks like the picture. They will make a burger with up to ten burger patties if you wish (called a ten by ten, try it I dare you). You have to ask, it is not listed on the normal menu. What is actually on the listed menu is an excellent value price wise.
2. Tommy's Burgers. They have a combo meal for $8.00 USD that includes sales tax. Triple cheese burger, large fries, and large soft drink. Their trick is they by default put chili on everything except the soft drink or unless you explicitly tell them to leave it off. And buy put chili on I mean it like they give you what looks like a giant pile of soft shit and you have to dig under the chili to find a burger or fries. If you eat here often, expect cardiac surgeries in your future. For a fastfood place the chili does taste unique and special to them. It is all meat, no beans. Tastey.