2 lbs. mixed salted nuts
1 (10 1/2 oz.) box Cheerios
1 (18 oz.) box Crispix
1 (12 oz.) pretzel sticks
1 lb. butter + 1 c. cooking oil
2 tbsp. Worcestershire sauce
1 tbsp. garlic powder
1 tbsp. season salt

Mix first 4 ingredients in large roaster. Melt butter and mix with remaining ingredients and pour over top of cereal mixture. Stir carefully from bottom up, not crushing cereal. Bake 2 hours at 250 degrees. Stir about every 20 minutes. Turn oven off last 1/2 hour.