Zesty's Frozen Custard and Grill Share: Restaurant Zesty's Frozen Custard and Grill Visit Website Request Info 508 Greene Avenue Allouez, WI 54301 920.246.8475 About Map About Fresh local food with high quality products and customer service. Custard made fresh every 3 hours. Zesty's has 3 locations (Riverside Dr, Greene Ave and on Lineville Rd in Howard-Suamico.) What's Nearby? Distance: 5 10 15 20 25 50 mi.