Preheat your oven to 250 degrees Fahrenheit. Line a rimmed baking sheet with parchment paper.
In a large mixing bowl, combine the dry ingredients - cereal, rye chips, crackers, and nuts.
9 cups Chex cereal, 2 cups rye chips, 1 cup small pretzels, 1 cup oyster crackers, 1 cup peanuts
In a glass measuring cup, combine the melted butter, Worcestershire sauce, seasoning salt, garlic powder, and onion powder. Whisk to combine well.
8 tablespoons unsalted butter, 2 tablespoons Worcestershire sauce, 1 1/2 teaspoon seasoning salt, 2 teaspoons garlic powder, 1 teaspoon onion powder
Pour the wet ingredients over the dry ingredients and mix well. Pour onto the prepared baking sheet. Make sure to scrape down the bowl with a spatula adding any remnants to the baking sheet.
Bake for 1 hour, tossing the ingredients on the tray every 15 mintues. Remove when the ingredients are golden brown and crisp.
Serve right away, or wait to cool and then store in an airtight container for up to a week.