1 onion, diced
2 avocados, diced
2 tomatoes, diced
1/2-2/3 bunch cilantro, chopped
1 c. ketchup
6 limes, juiced
1 1/2 lb. medium cooked shrimp

Blend all ingredients well. Lightly toss with shrimp. Serve in small cups and/or with crackers.