Healthy Chicken Salad

Ingredients

• 2 skinless, boneless chicken breasts (1–1½ lb. total)
• 3 Tbsp. kosher salt, plus more
• 3 scallions, thinly sliced on a deep diagonal
• 3 Persian cucumbers
• ½ cup toasted sesame seeds, divided
• 2 Tbsp. fresh lime juice
• 2 Tbsp. tahini
• 1 Tbsp. soy sauce
• 1 tsp. honey
• ¼ tsp. crushed red pepper flakes
• ¼ head of romaine or green or red leaf lettuce or 1 head of Little Gem lettuce
• Big handful of cilantro leaves with tender stems
• ½ lime (for serving)