Seafood Pasta Salad
["2 (12 oz.) bags rotini pasta (uncooked)", "1/2 yellow onion, diced", "1/2 purple onion, diced", "1/2 bell pepper, diced", "1 stalk celery, diced", "3 lb. seasoned boiled shrimp, cut in half", "1 lb. cooked fresh white crabmeat", "1 1/2 c. mayonnaise", "2 Tbsp. Creole mustard", "2 Tbsp. Tony Chachere seasoning", "2 Tbsp. ketchup", "1/4 tsp. salt (if needed)"]
["Place pasta in a pot of boiling saltwater and cook for about 15 minutes or until pasta is done. Drain and wash pasta, then place in large mixing bowl. Add onions, celery and bell peppers and mix thoroughly. Next, add shrimp, crabmeat, mayonnaise, Creole mustard and Tony Chachere. Mix very well. If more mayonnaise is desired, add more. When salad is well mixed, add ketchup. Stir in ketchup and mix well. When pasta is well mixed, pour into dish and cover. Place in the refrigerator for about 2 hours. Serve chilled."]
["rotini pasta", "yellow onion", "purple onion", "bell pepper", "celery", "shrimp", "white crabmeat", "mayonnaise", "Creole mustard", "Chachere", "ketchup", "salt"]