Shrimp Appetizer Party Tray With Avocado And Tomato Preparation time: 25 minutes. Serves 4-6 people. 1 pound large, cooked shrimp (prawns, 20-25 per pound) 1 small head lettuce, shredded 1 small amount of whole lettuce leaves 2 tomatoes, diced 3 avocados, diced or sliced 2 lemon wedges, cut into 6-8...