Preheat oven to 250 degrees F/120 degrees C
In a large bowl, combine the cereal, nuts, pretzels, and bagel chips.
Mix the melted butter, Worcestershire sauce, Sriracha, seasoned salt, Cajun seasoning, garlic and onion powders, and red pepper flakes in a bowl.
Pour the butter mixture over the dry ingredients and stir well until it is evenly coated.
Spread the cereal mixture onto a large baking sheet. Bake for 1 hour, stirring every 15 minutes. Allow to cool on parchment paper on countertop for 30 minutes before eating.