All-Star Diner Address: 1100 N State Highway 121, Mount Zion, IL 62549 Phone: (217) 864-6962 Restaurants Other Businesses: Crawford's Pizza & Pub at 170 W. Debby Drive, Mount Zion, IL 62549 Subway at 1580 N State Highway 121, Mount Zion, IL 62549 Caseys Carry Out Pizza at 950 N State Highway 121, Mount Zion, IL 62549