Creole Shrimp (Easy and Fast)

Ingredients

• 1 (10 oz) can cream of celery
• 1 (10 oz) can cream of mushroom
• 1 (10 oz) can Rotel Brand tomatoes
• 1 cup chopped onion
• 1/2 cup chopped bell pepper
• 1/2 cup chopped celery
• 2 tsp garlic powder
• 1/2 stick butter (4 tbsp or 2 oz)
• 1 - 2 lbs peeled shrimp
• 1/4 cup ketchup
• 1/2 cup parsley, chopped
• 1/2 cup green onions (scallions), chopped
• Black pepper and cayenne to taste