Osterias are wine bars that have evolved to serve simple meals. Traditionally, they are simpler than trattorias and usually have no menu. The offering changes daily, according to the market and two or three courses are offered for a fixed price, including wine.

In the past, a trattoria was a more casual dining location while a ristorante was elegant and formal. Currently, these words can be used interchangeably as trattorias have become a bit more formal. However, you can still walk into either and notice distinct differences.

The move is aimed at driving the chain's growth across Europe, with McWin investing alongside L'Osteria founders, Klaus Rader and Friedemann Findeis, and management. The exact size of the stake was not disclosed.

The 14th Street strip will have yet another dining option when Sette Osteria opens on Tuesday, April 14. Owner Iraklis Krabassis is also behind the space's former concept, M Cafe Bar; the venue temporarily closed for a remodel, and transitioned into a sibling of Sette Osteria in Dupont Circle.