ZestyÕs Frozen Custard and Grill has three locations. One location is in Allouez. One location is in De Pere. The final location is in Howard/Suamico. ZestyÕs is best known for their frozen custard and they have won or been a finalist in the Best of Green Bay awards by the Green Bay Press Gazette. The Howard/Suamico and Allouez locations are open daily from 11:00 am to 9:00 pm The De Pere location is open from 3:00 am to 9:00 pm during the work week. On the weekends they are open from 12:00 pm to 9:00 pm.