Shrimp and Sausage Gumbo Casserole

Name: Shrimp and Sausage Gumbo Casserole
Ingredients: 1 pound thawed raw shrimp, peeled and deveined; 1/2 of a 17.3oz package frozen puff pastry sheets, 1 sheet, thawed; 1/2 tsp Cajun Seasoning; 1 cup chopped green sweet pepper; 1/2 cup sliced celery; 2 tsp Gourmet Garden Garlic, or 2 tsp minced garlic; 1 tbsp Olive Oil; 1 pound cooked smoked andouille sausage, sliced; 14.5 oz can diced tomatoes, drained; 10.75 oz can cream of chicken soup; 9 oz package frozen cut okra, thawed; 2 tbsp tomato paste; 1/2 tsp salt; 1/2 tsp cayenne pepper