Give in to the convenience of already poached shrimp in this bright main-dish salad, perfect for lunch or a light dinner. The core is easy and uncomplicated: Fresh ginger and chiles are married with sesame seeds and oil in a tangy vinaigrette for tender shrimp, crisp cucumbers and a bed of peppery arugula. It’s decidedly unfussy and very easily adaptable — add scoops of avocado or soft-boiled eggs for extra richness or simply serve with buttered toast and make open-faced sandwiches. Individual chiles have their own heat ranges, just like our taste buds. Use the amount in the recipe as a guide, but trust your instincts to adjust.