Green Salad With Pickled Mushrooms, Cucumbers, Onions, and Pecorino Recipe

Ingredients (12)

• Kosher salt
• 3/4 cup white vinegar
• 1/3 cup sugar
• 1 cucumber, seeded and cut into 3/4-inch dice
• 1 small onion, thinly sliced
• 3 ounces hon-shimeji mushrooms, trimmed
• 4 ounces snap peas, trimmed and split crosswise at a bias
• 1 teaspoon dijon mustard
• 3 tablespoons extra-virgin olive oil
• 1 large head red leaf lettuce, leafed, washed, and carefully dried
• 3 ounces crumbled pecorino cheese
• Black pepper