Combine mayonnaise and pesto, stirring well. Spread 1 tablespoon mayonnaise mixture on each of 4 bread slices; top each slice with 2 ounces turkey, 1/2 ounce cheese, and 2 tomato slices. Top with remaining bread slices.
Preheat grill pan or large nonstick skillet coated with cooking spray over medium heat. Add sandwiches to pan; top with another heavy skillet. Cook 3 minutes on each side or until golden brown.
In Italian, "panini" means small bread and refers to a pressed sandwich. Using a grill skillet gives the sandwich appetizing grill marks, but the recipe works just as well in a regular nonstick skillet. If you don't have provolone cheese, you can use mozzarella.
I made these sandwiches when we had company for lunch. Our two guests, my daughter, and I really liked the panini, while my husband found it a bit bland? My daughter and I continue to enjoy these on occasion when it's just us girls!
Very good. Made as directed, and was surprised how well the flavors came together. Served with Tomato-Basil Soup for a delicious, comforting dinner. Not sure it's a special occasion meal, but better than 'good and solid'. Will definitely make again.
What's not to love? Made this yesterday with low fat turkey breast slices, tomatoes, whole wheat bread, Colby cheese slices and skipped the mayo (hate it) since, to me, the delicious pesto is enough. I substitute fat free Greek yogurt for mayo anyway although I didn't feel the need. Used our trusty George Forman grill. Great go to meal or to make little sandwiches for a party. ;) Try it with tomato pesto and quesadillas. Yum!