Quick, Easy -N- Fast Cheesy BBQ Popcorn Recipe

3 T. butter
1/2 t. chili powder
1/2 t. garlic salt
1/4 t. onion powder
8 C. popped popcorn
1/2 C. grated Parmesan cheese

Melt butter and add seasonings. Pour over popcorn, then sprinkle with cheese and mix thoroughly.