Wow! Prego Pasta Sauce for $.50 at the Dollar General through 07/22! Posted by Harbor Master on 17 July 2017, 3:20 pm Tweet expired Through 07/22, The Dollar General has Prego Pasta Sauce on sale two for $3. You must buy two to get this price. Buy two for $3 and use two of the $1 off coupons below and pay $1 for two or $.50 each! Click here to print $1 Off any ONE Prego Italian Sauce (24oz. or larger)