Heat oven to 300°F. In ungreased large roasting pan, mix cereal, crackers, pretzels, cranberries and cashews.
In small bowl, mix melted butter and dressing mix until well blended. Pour over cereal mixture, stirring until evenly coated.
Bake 20 to 30 minutes, stirring twice, until lightly browned. Spread on waxed paper or paper towels; cool about 15 minutes. Store in airtight container.