Preheat oven to 250°F.
Line a large baking sheet with parchment paper.
In a large mixing bowl, combine the Chex cereal, pub mix, Goldfish crackers, pretzels, and Club crackers.
In a separate bowl, whisk together the cheese powder, mustard powder, paprika, onion powder, garlic powder, honey, and melted butter until smooth.
Drizzle the seasoning mixture over the cereal mixture.
Toss thoroughly until every piece is evenly coated.
Spread the mixture onto the prepared baking sheet in an even layer.
Bake for 30-40 minutes, stirring every 10 minutes.
Remove from the oven when lightly golden and fragrant.
Allow the snack mix to cool completely on the baking sheet.
Transfer to an airtight container and enjoy.