Horváth is a common Hungarian surname. It was adopted from Slavic.
It is an older version of the noun "Hrvat" which is the Croatian-language name for a Croat, (Hungarian: Horvát). The surname "Horvat", without the "h" (as the sound 'th' does not exist in the Croatian language) still exists and is the most frequent surname in Croatia or the Croatian diaspora. "Horváth" is 4th most frequent in Hungary and the most frequent in Slovakia.
Translation by Tamás Vaski... It was in 1870 when the dish made an appearance in the Carpathian Basin, prepared on open fires by Bulgarian gardeners ... lëcső. Lëcsó meant green peppers shaped with tomatoes, Sándor Horváth gathered in the the Hungarian Language periodical’s 1914 issue ... Lecsó with Eggs ... Cover and let it cook for a bit ... Related article.