2 packages frozen chopped spinach
4 tablespoons butter
2 tablespoons all-purpose flour
2 tablespoons chopped onion
1/2 cup evaporated milk
1/2 cup spinach liquid
1 (6-ounce) roll jalapeno cheese, cut into small pieces
1 teaspoon Worcestershire sauce
1/2 teaspoon black pepper
3/4 teaspoon celery salt
3/4 teaspoon garlic salt
Ground red pepper
Salt