Jibneh w Zaytoun (جبنة وزيتون) is the cheese-and-olives sandwich, white cheese and whole or chopped olives folded into bread together, one of the most common breakfast builds in Lebanon. The angle is salt on salt with a brightener. Both components are brined and savory, so the pairing risks being one flat salty note unless something cuts it, which is why olive oil, za'atar, fresh mint, or tomato so often comes along. It hinges on balancing the two salts and on the olives being good, because tired or overly briny olives drag the whole thing down and a cheese that is also harsh leaves nothing to relieve it.
The build is short and the seasoning is the craft. White cheese, akkawi, baladi, or a soft fresh jibneh, is sliced or crumbled into a flatbread, khubz, pita, or a saj sheet. Olives, usually a local variety, green or black or both, are added whole, pitted, or roughly chopped, sometimes already dressed with oil, lemon, garlic, and chili the way a mezze olive plate is. The cheese is frequently soaked and patted dry to keep the combined salt in check, and the sandwich is most often eaten cold and plain, the cheese and olives carrying it, very commonly finished with olive oil and a scatter of za'atar that ties the two together. It can be warmed in a saj so the cheese softens and the bread crisps. Good execution shows in the balance and the olives: a cheese desalted enough to sit beside the olives without the pair turning punishing, good olives with real flavor rather than tinny brine, and a bright accent of oil, za'atar, or mint doing the lifting. Sloppy execution stacks an over-salted cheese against harsh olives so the sandwich is one aggressive note, uses dull olives that add salt but no character, or skips the brightener entirely so there is no relief from the brine.
It shifts mostly by the olives and by what is added to cut the salt. Plain green olives keep it sharp and clean; oil-cured black olives push it richer and softer. A spiced olive mix with garlic and chili turns the sandwich punchy; a plain one with just za'atar and oil keeps it quiet. Tomato, cucumber, or mint added in moves it toward a fuller garden wrap with cheese and olives at the core. Warmed it becomes a melt where the olives stud a soft cheese. The plain cheese sandwich, the cheese-and-tomato build, and the braided string cheese are distinct enough to stand as their own articles rather than being folded in here. What this one reliably delivers is the breakfast pairing balanced right: clean white cheese and good olives, brightened with oil and za'atar, carried in fresh bread.