In the crock-pot add cereals, pretzels, Whole O's,and peanuts.
In a small bowl combine melted butter, seasoned salt, Worcestershire sauce, and garlic powder.
Add the buttery mixture to the crock-pot and gently mix to combine all.
Cook in the crock-pot on low about 3 hours. Stir mixture every 45 minutes or so to prevent the bottom from burning.
After 3 hours in the crock-pot spread mixture on a baking sheet and allow to cool. Mixture will initially be moist, however as it cools it will become crunchy.
Notes
I find it best a timer is set to stir the mixture every 45 minutes.