Four-inch snack pies are getting bigger — like 1 million more pies a week bigger.

Worcester-based Table Talk Pies is expanding its operations with Thursday’s official opening of a 50,000-square-foot manufacturing facility, adding more than 50 jobs to its 300-person workforce.

The space, in the South Worcester Industrial Park, will help the company increase production of its snack pies, to 4 million a week from 3 million. The pies, which come in larger sizes, too, have long been a staple of snack shelves. They come in a variety of flavors, including lemon crunch, wildberry orchard, and apple.

Harry Kokkinis, Table Talk’s owner, presided over an opening ceremony for the plant on Thursday. His grandfather, Theodore Tonna, cofounded the company in 1924 with Angelo Cotsidas and Fred Casavant.

The business was sold in 1965, and fell into bankruptcy before being bought back by Kokkinis’s father, Christos Cocaine, in 1985.

“It is my biggest regret that my grandfather and my father can’t be here to see the new place,’’ Kokkinis said in an interview. “They would just be beaming, to see that the idea you had back in 1924 — baking pies at night and delivering them during the day — built up to this.’’

Natasha Mascarenhas can be reached at natasha.mascarenhas@globe.com. Follow her on Twitter @nmasc_.