How to Make It
Preheat the oven to 400°. In a blender, puree the tomatillos, avocado and lime juice. With the machine on, add 3 tablespoons of the oil. Transfer to a bowl; fold in the chopped peppers. Season with salt and white pepper.
In a large skillet, heat the remaining 2 tablespoons of oil. Add the diced chayote and tandoori seasoning and season with salt and white pepper. Cook over moderate heat, stirring, for 2 minutes. Add the cream and broth and simmer over low heat until the chayote is tender and coated in a thick sauce, about 5 minutes longer. Stir in the chopped parsley.
Cut eight 6-inch squares of parchment and lightly brush them with oil, then place on a large baking sheet. Arrange 1 sliced scallop in a rosette on each piece of parchment and season with salt and white pepper. Bake for 5 minutes, just until the scallops are white.
Spoon the creamed chayote onto plates and top with a dollop of the tomatillo-avocado puree. Slide the scallop rosettes over the puree. Garnish with parsley leaves, cherry pepper slices and shaved chayote and serve.
Tandoori seasoning is available at penzeys.com