VEVEY, SWITZERLAND — Frozen food sales in North America were flat for Nestle S.A. in fiscal-year 2018 when compared with 2017, which has company executives stressing innovation in 2019. "When it comes to frozen meals, we did not have a good year, and we just own up to that," said U. Mark Schneider, chief executive officer, in a Feb. 14 earnings call. "We're working intensely to address that situation, and I'm very bullish when it comes to expectations here going forward."