Dennys Restaurant is located at 16205 Brookhurst St, Fountain Valley, CA. This business specializes in Family Style Restaurants. Dennys Restaurant is open Mon, 12am-12am ; Tue, 12am-12am ; Wed, 12am-12am ; Thu, 12am-12am ; Fri, 12am-12am ; Sat, 12am-12am ; Sun, 12am-12am. and accepts American Express, Discover and Visa.