Denny's Corp. has offered a cautious outlook on the restaurant industry as major chains gear up to release their earnings reports this week. Denny's indicated that customers are increasingly seeking discounts, suggesting potential headwinds for the sector. This observation comes as investors closely monitor the performance of larger restaurant groups to gauge the overall health of the dining market and consumer spending habits. The focus will be on whether other companies confirm Denny's assessment or report more positive trends, influencing market sentiment regarding the restaurant industry's near-term prospects.