G.G.'s Party Mix (Nuts and Bolts)

2 T Worcestershire
6 T butter
1 1/2 t seasoned salt
3/4 t garlic powder
1/2 t onion powder
3 cups each - corn, rice, wheat chex
1 cup mixed nuts
1 cup pretzels

Preheat to 250 degrees. Melt butter in roasting pan. Add seasoning. Bake 1 hour. Stir every 15 min. Spread on paper towels to cool.