Step 1

In a large bowl combine tomatoes, ketchup, tomato sauce, red onion, cucumber, celery, cilantro, garlic, jalapeño, lime juice, pepper and salt. Taste and add extra seasoning if needed.

Step 2

Cover, and refrigerate 2 to 3 hours to let the flavor build and chill the sauce. Add shrimp and avocado chunks right before serving.

Step 3

Serve in a large bowl or in small cocktail glasses with a side of tortilla chips for dipping.