Cœur-de-bœuf tomatoes from Provence at the Cours Saleya market in Nice, France June 13, 2016 800 × 1067 France | Food Culture | Photos By Nate Gray Cœur-de-bœuf tomatoes from Provence at the Cours Saleya market in Nice, France Cœur-de-bœuf (ox heart or beef tomatoes) for sale at the Cours Saleya market in Nice, France – related to beefsteak tomatoes.