List of Denny's Stores in South Beloit, IL Outlet Note Regular Brands Denny's Illinois South Beloit Rating 4.8 based on 89 votes Products Fast Food Restaurant Pancake House Coffee Shop Steakhouse NameAddressPhone Name/Address/Phone Denny's outlet - South Beloit 16049 Willowbrook Rd (815) 389-6023 People Also Viewed