BLT Salad Bites

Name: BLT Salad Bites
Ingredients: 1/4 cup mayonnaise; 2 tablespoons plain yogurt; 1 teaspoon chopped fresh chives; 1 teaspoon fresh lemon juice; 1/2 teaspoon Dijon mustard; Kosher salt and freshly ground black pepper; 3 ounces pancetta, cut into small dice; 1/2 cup cherry tomatoes, halved; 2 tablespoons extra-virgin olive oil; 1 tablespoon chopped fresh chives; 1 teaspoon red wine vinegar; Sea salt and freshly ground black pepper; 2 to 3 heads Little Gem lettuce (about 16 leaves); 1/4 cup grated Parmesan