Pita Gyros Horis Tzatziki is the standard pita gyros ordered without its defining sauce: horis tzatziki, no garlic-yogurt at all. Of every subtraction on this list this is the most consequential, because tzatziki is not a side condiment in a gyros, it is the binding element, and the entire angle here is what the wrap has to become once it is gone.
The order is otherwise intact: warm griddled pita, carved gyros off the spit, tomato, onion, fries, rolled into a cone. But tzatziki normally does three jobs at once: it coats the bread so the filling adheres, it brings cool acidity and garlic to cut the fat of the meat, and it moistens an otherwise dry stack. Remove it and a careless build is dry, crumbly, and prone to falling apart, because nothing is gluing the meat and patates to the pita. Good execution replaces the function rather than just deleting it: a slick of olive oil or the meat's own juices brushed on the bread for adhesion, ripe tomato carrying moisture and acid, and often mustard or a little ketchup added in the tzatziki's place so the round still has a sauce doing the cutting and binding. The meat should be carved juicy, not bone-dry, since there is no dairy to rescue it. Sloppy work simply leaves the tzatziki out and adds nothing, handing over a dry, dusty wrap that sheds shavings and tastes of warm meat and not much else; the wrap also unrolls more easily without sauce holding the layers, so the cone has to be packed and sealed tighter than usual.
This variant is ordered by people avoiding garlic, dairy, or the sauce itself, and it is a sharp test of whether a counter understands that a gyros needs something wet and acidic to work. Some shops automatically offer mustard, ketchup, or extra tomato as the stand-in; others hand it over plain and the result is leaner and drier by design, which is exactly what some customers want. The garlic-yogurt tzatziki itself, how it is salted, strained, and seasoned, deserves its own article rather than being crowded in here; at this entry the single variable is its absence and what a good shop substitutes to keep the wrap from collapsing into a dry bundle.