Preheat the oven to 250°F.

In the largest bowl available, combine the Chex cereal, pretzel sticks and mixed nuts.

In a small bowl, whisk together the melted butter, Worcestershire sauce, garlic powder, onion powder and seasoned salt.

Pour the butter mixture slowly over the cereal mix, tossing gently as you go so every piece gets coated without crushing the cereal.

Spread the mixture in a single layer across two large rimmed sheet pans.

Bake for 1 hour, stirring gently every 15 minutes, until the mix turns a light golden color and smells toasted rather than raw.

Remove from the oven and spread the mix out on paper towels or a clean sheet pan to cool completely, about 20 minutes.

Store in an airtight container or serve right away in large bowls.