Dressed/filled bread: bread that contains savory fillings or is meant to be eaten as a savory item (sandwiches, filled rolls, pirozhki-style breads); also called chōri-pan (prepared/cooked bread).
昼ごはんに惣菜パンを買って、オフィスで食べた。
I bought a savory bread for lunch and ate it at the office.
このパン屋は惣菜パンの種類が豊富で人気がある。
This bakery is popular because it has a wide variety of savory/filled breads.
揚げた惣菜パン（コロッケパン）は子供のおやつにもよく出る。
Fried savory breads (like croquette sandwiches) often appear as children's snacks.