01 - Slice the tops off the tomatoes and gently scoop out the seeds and pulp using a spoon. Reserve the tops for decorative lids.
02 - Lightly salt the inside of the tomatoes and turn them upside down on a paper towel to drain for 10 minutes.
03 - In a mixing bowl, combine the shrimp, mayonnaise, heavy cream if using, lemon juice, parsley, chives, salt, and pepper. Mix until thoroughly incorporated.
04 - Pat the inside of the tomatoes dry with paper towels. Generously fill each tomato with the shrimp mixture.
05 - Replace the reserved tomato tops if desired. Arrange filled tomatoes on a serving platter and garnish with additional fresh herbs and lemon wedges. Serve chilled.