Caprese Grilled Cheese Sandwiches

by Katie of:
8 thin slices french bread
8 oz. large ball fresh mozerella cheese, cut in thin slices
1 cup fresh basil leaves
2 large heirloom or vine-ripe tomatoes
salt & pepper
1/4 c. basil pesto
1/4. melted butter, preferrably salted
Brush butter on one side of 4 slices of bread.  Place buttered side down on medium-low skillet.  Layer on each piece of bread - slices of mozerella cheese to cover each slice, 2 slices of tomato to cover cheese. Sprinkle salt and pepper over tomato slices and top with fresh basil leaves.  Spread generous tablespoon of pesto on remaining 4 slices of bread.  Place pesto side down on top of sandwiches.  Brush melted butter over top of slices and flip sandwiches when golden browned (about 1-2 minutes.   Grill over low to medium heat in skillet about 2 more minutes more but watch carefully!  Serve immediately!