Artichoke and Pepperoncini Turkey Burgers

1/2 cup mayonnaise

1/4 cup drained pepperoncini peppers, stemmed and chopped

2 pounds uncooked ground turkey

1/3 cup finely chopped red onion

1/4 cup grated Parmesan cheese

1/4 cup snipped fresh basil or 1 teaspoon dried basil, crushed

1/4 teaspoon salt

1/4 teaspoon freshly ground black pepper

6 slices Monterey Jack cheese with jalapeno peppers (6 ounces)

6 sourdough rolls, split

6 lettuce leaves

2 medium tomatoes, sliced Pepperoncini peppers