- To make the dressing, in a small bowl, whisk together mayonnaise, tomato sauce, Worcestershire sauce, lemon juice, and sriracha. Season with salt and pepper to taste. Adjust the flavours if needed, adding more lemon juice for tang or hot sauce for heat.
- Divide the lettuce evenly among shallow bowls. Scatter with cucumber, avocado, cherry tomatoes, and red onion.
- Top with prawns and drizzle with the cocktail sauce and serve immediately with lemon wedges on the side.