Spicy Corn Salad with Buttermilk Cotija Salad

Ingredients (14)

• 4 ears fresh corn, shucked
• 1 bunch scallions, trimmed
• 1 serrano, stemmed and halved lengthwise
• 3 tablespoons olive oil
• Kosher salt and black pepper
• 4 ounces cotija cheese, crumbled (about 3/4 cup)
• 1/2 cup buttermilk
• 1 teaspoon freshly grated lemon zest plus 1 tablespoon lemon juice
• 1 small garlic clove, grated
• ¼ cup sliced fresh chives
• ¼ cup finely chopped fresh parsley
• 1 medium head romaine lettuce, roughly chopped
• 2 avocados, chopped (optional)
• Tajin seasoning, garnish