Two of the largest restaurant chains in the U.S. are planning to expand into the Central European market with openings in Warsaw, Poland.

Texas-based heritage brand Fuddruckers recently opened its first restaurant in the Polish capital in partnership with the Italian restaurant franchisee Vinum et Alia.

The new 2,777-square foot eatery can accommodate 130 diners and is one of ten Fuddrucker’s plans to open in Poland and other European locations in cooperation with its partner.

At the same time, Fuddrucker’s rival, California-based ‘50s-themed Johnny Rockets, announced the inking of a development agreement with HDS Polska Group to build and operate ten restaurants in Poland over the next 10 years. The group said it plans to open its first Johnny Rockets restaurant in Warsaw next year.

“Our expansion into Poland marks Johnny Rockets’ entry into our 27th country, paving the way for future growth in Europe, particularly France, Germany, United Kingdom and other major European markets,” said James Walker, Johnny Rockets’ president of operations and development.

HDS Polska operates a network of over 800 outlets in Poland, including convenience stores, coffee shops, and full- service restaurants.

Johnny Rockets’ franchise partners currently operate more than 125 restaurants outside the U.S., and the brand’s global plan is to double that number by 2017.