In small microwave-safe bowl MELT butter
Add seasoned salt and Worcestershire sauce; mix well.
Pour cereals, nuts and pretzels into large bowl.
Pour butter mixture over cereal mixture.
Gently toss until all pieces are evenly coated.
Microwave on high for 5-6 minutes, stirring every 2 minutes.
Spread on absorbent paper towels to cool.
Store in airtight container.