1In large microwavable bowl, place cereal.
2In small microwavable bowl, microwave butter uncovered on High 30 to 40 seconds or until melted. Stir in seasoning blend. Pour over cereal; stir until evenly coated. Stir in crackers and popcorn.
3Microwave uncovered on High 3 to 4 minutes, thoroughly stirring every minute or just until cereal begins to lightly brown. Spread on paper towels to cool. Store in airtight container.