In a medium mixing bowl, combine the softened cream cheese, drained crushed pineapple, finely chopped green pepper, onion, and seasoned salt. Using an electric mixer, blend the ingredients until thoroughly combined and smooth. Cover the bowl with plastic wrap and refrigerate for 30 minutes to allow the flavors to meld and to slightly firm the mixture.

Remove the cheese mixture from the refrigerator. Place the mixture onto a piece of plastic wrap, and use the wrap to help form it into a round ball. The mixture may be somewhat soft, but the plastic wrap will assist in handling and shaping it.

Spread the chopped walnuts on a plate or shallow dish. Unwrap the cheese ball and gently roll it in the walnuts, pressing lightly to ensure the entire surface is evenly coated. This step adds both texture and visual appeal to the cheese ball.

Once coated, rewrap the cheese ball in fresh plastic wrap and refrigerate overnight to allow it to firm fully. Before serving, remove it from the refrigerator, transfer it to a serving platter, and arrange assorted crackers and fresh vegetables around it for dipping.