Combine all ingredients except broccoli and crackers. Shape mixture to resemble a pumpkin. Trim broccoli stalk, if needed, and press lightly into the top of the pumpkin for a stem. Use a knife to make vertical lines down the sides of the cheese ball. Press seeds into the side of the pumpkin for texture. Serve with crackers.
Presenting the food is just as much fun as making it! When making your cheese ball pumpkin, set it on a pedestal plate and tuck fall leaves under the plate for an autumnal look.