Spinach Casserole

Ingredients

• 4 (10 oz.) pkg. frozen chopped spinach, thawed
• 1/4 c. butter or margarine
• 1/2 onion, chopped
• 2 Tbsp. all-purpose flour
• 1 (12 oz.) can evaporated milk
• 1 (6 oz.) roll jalapeno pepper cheese, grated*
• 1/2 tsp. garlic salt
• 1/2 tsp. celery salt
• 1 tsp. worcestershire sauce
• 2 c. crushed round buttery crackers (about 56)
• 1/4 c. butter or margarine, melted