Zrazy: closing a mushroom centre inside a meat patty
Зразы
A browned patty can hide a second course in miniature. In these zrazy, a soft meat shell encloses a distinct centre of mushrooms and onion; the seam matters as much as the crust.
A filling, not a mix-in
For mushroom zrazy, chopped mushrooms belong in a pocket at the centre. Mixing them throughout the mince would make a different kind of patty: tasty, perhaps, but without the contrast that defines this version. A small centre also leaves enough meat around it to close the seam and turn the patty safely in the pan.
Russian-language recipes provide several routes to that result. Olga Kotelnikova at MenuNedeli coats mushroom-filled mince patties in breadcrumbs and finishes them with a sauce; Marina’s Povar recipe uses a bread-and-milk mixture in the meat and a flour coating. Our adaptation keeps the bread mixture and crumb crust, then uses an oven finish so browning and cooking the centre are separate decisions.
Which zrazy are on the plate?
The name covers a wider family than one Russian recipe. Olga Syutkina’s Gastronom account describes its Polish connections and versions made with meat, fish or potatoes.
Minced-meat shell
This article follows Russian home-style meat zrazy: seasoned mince surrounds a separately cooked filling. Mushrooms are one option; egg fillings also appear in Russian-language accounts. The cut surface shows meat all the way around the centre.
- The meat mixture must hold together.
- The filling is cooked and cooled before shaping.
Potato shell
Potato zrazy put the stuffing inside mashed potato rather than mince. Their outer texture and shaping problems differ, even when the centre is also mushrooms. Do not substitute potato directly into the meat recipe below.
- A shared name does not make the shells interchangeable.
- Check the ingredients before choosing a method.
Our adaptation
Mushroom-filled beef-and-pork zrazy
Makes 8 patties, serving 4. A frying pan starts the crust; a baking tray finishes the filled centres. Allow about 70 minutes, with cooling and mixing overlapping.
Ingredients
Meat shell and coating
- 400 g minced beef
- 200 g minced pork
- 40 g soft white bread, torn into small pieces
- 60 ml milk
- 1 large egg
- 1 garlic clove, finely grated
- 40 g fine dry breadcrumbs
Filling and seasoning
- 250 g button mushrooms, finely chopped
- 120 g onion, finely diced
- 3 tbsp (45 ml) neutral oil, divided
- 1 tsp (about 6 g) fine salt, divided
- ¼ tsp ground black pepper, divided
To serve, optional
- Prepared mashed potatoes and sour cream
Method
- 1
Cook and cool the filling
Heat 1 tablespoon oil in a wide frying pan over medium heat. Soften the onion for about 4 minutes. Add mushrooms, ¼ teaspoon salt and half the pepper; cook 8–10 minutes, stirring, until released water has evaporated and the mixture is lightly browned. Spread on a plate and cool for about 10 minutes. Divide into 8 equal portions.
- 2
Make a cohesive shell
While the filling cools, soak the bread in the measured milk for 5 minutes and mash into a paste. Mix with beef, pork, egg, garlic, the remaining ¾ teaspoon salt and pepper. Work together until evenly combined and slightly tacky. Divide the meat mixture into 8 equal portions. Heat the oven to 190°C/375°F.
- 3
Close each pocket
With damp palms, flatten one meat portion into a disc about 10 cm across. Put one portion of cooled filling in the middle, leaving a clear border. Bring the meat edges together and pinch closed; gently roll into an oblong patty about 2.5–3 cm thick. Check the ends and underside for exposed filling. Repeat, keeping the patties similar in thickness. Lightly coat with the breadcrumbs.
- 4
Brown, then finish cooking
Heat the remaining 2 tablespoons oil over medium heat. Brown the patties in 2 batches, about 3 minutes per side; lower the heat if crumbs darken rapidly. Transfer to a baking tray. Bake about 15–20 minutes, checking the thickest centres with a food thermometer. Continue until the centre reaches 74°C/165°F; timing and crust colour alone cannot establish this.
- 5
Rest and serve
Rest for 3 minutes. Serve 2 zrazy per person, optionally with prepared mashed potatoes and sour cream. Cut one at the table to reveal the filling, leaving the others intact so they retain their juices.
Read the pan, measure the centre
A wet filling creates a harder shaping job and can soften the crumb coating from within. The useful endpoint is visible: mushrooms are moist and glossy, but a spoon drawn through the pan does not leave a pool of liquid behind. Cooling then lets the filling keep its own texture instead of warming the raw mince while you work.
FoodSafety.gov lists 71°C/160°F for ground beef and pork and 74°C/165°F for meat-containing casseroles. This filled, oven-finished adaptation uses the higher centre target. Insert the thermometer into the thick middle of several of the largest patties. A dark crust can arrive well before the filling and its surrounding meat are ready.
Research notes
Sources and further reading
Russian-language cooking sources establish the dish family and different home methods; the temperature chart informs the final cooking check.
- Olga Syutkina, Gastronom: Зразы The wider zrazy family, meat and potato shells, and mushroom fillings.
- Olga Kotelnikova, MenuNedeli: meat zrazy with mushrooms Ground-meat shaping, cooked mushroom filling, crumb coating and a sauce-finished variation.
- Marina, Povar: Зразы мясные с грибами A Russian-classified mushroom zrazy recipe using bread, milk and a flour coating.
- FoodSafety.gov: safe minimum internal temperatures Ground-meat and meat-containing casserole temperature guidance.


