At 7am in any Balkan city, the line at the burek bakery is out the door. A slice of still-hot burek and a glass of kefir or ayran (soured milk) is breakfast for a significant portion of the population. It sounds like a modest morning meal - pastry and milk - but a single meat burek slice runs close to 500 kcal and 20g protein, which is not a small breakfast by anyone's measure.
Burek is made from yufka or filo dough - paper-thin pastry sheets layered with fat (traditionally rendered fat, but butter or oil work at home) and a filling, then baked until golden and shatteringly crisp. The defining characteristic is the layering: a properly made burek has dozens of distinct pastry layers with filling distributed between them, not just a pastry shell with filling inside.
There's a regional naming debate worth knowing: in Bosnia, burek specifically means the meat-filled version. A cheese-filled version is called sirnica. Spinach-filled is zeljanica. In Serbia and elsewhere, all versions are called burek. For simplicity, this guide covers all three fillings under the burek label.
Minced beef or pork (or a mix), diced onion, salt, pepper, a little oil. The filling is raw when it goes into the pastry - it cooks through in the oven. Season assertively because the pastry absorbs a lot of the salt.
White brined cheese (sirene/feta) crumbled or grated and mixed with whole eggs. The egg binds the filling and adds richness. Some recipes add a handful of fresh dill.
Wilted and squeezed spinach, white cheese, and eggs. The spinach must be squeezed very dry or the pastry becomes soggy. Slightly lower in calories than the meat version, higher in the cheese version.
Per slice (1/6 of a 30cm burek, meat filling, approx. 180g):
Cheese version is slightly higher in calories (~490 kcal) due to fat in the cheese. Spinach version runs slightly lighter (~400 kcal) if you reduce the cheese quantity. All estimates based on standard filo pastry and the filling ratios above.
Replacing half the oil with a light spray reduces fat meaningfully. Using lean mince (5% fat) drops another 50-80 kcal per slice. For the cheese version, a 50/50 split of full-fat feta and low-fat cottage cheese cuts fat while maintaining a reasonable texture. None of these produce traditional burek, but they're practical adjustments for everyday cooking.
Burek is breakfast food in the Balkans, but it works equally well as a lunch or light dinner. A slice with a shopska salad or a bowl of tarator is a complete meal. For a broader picture of Balkan cooking, the Balkans table guide covers all the essential dishes.