2/3 cup seasoned rice vinegar
1/3 cup white sugar
2 tablespoons seeded and minced fresh jalapeno pepper, or to taste
2 tablespoons chopped fresh cilantro, or more to taste
2 cups peeled, shredded jicama
1 pound cooked shrimp, shelled and deveined
3 tomatillos, husked and sliced
3 tomatoes, sliced
Mix rice vinegar, sugar, jalapeno pepper, and cilantro in a bowl; stir until sugar has dissolved.
Place jicama and 1/3 of the vinegar dressing in a resealable plastic bag; seal and refrigerate for 1 hour.
Place shrimp in a separate resealable plastic bag with 1/3 of the dressing; seal and refrigerate for 1 hour. Refrigerate remaining vinegar dressing.
Arrange alternate slices of tomatillo and tomato around the edge of a salad plate.
Mound marinated jicama in the center of the plate and top with marinated shrimp.
Pour remaining 1/3 of the dressing over salad.