This Caprese Grilled Cheese Sandwich recipe makes a simple and delicious gourmet grilled cheese sandwich with sourdough, pesto, ripe tomatoes, fresh basil, and melty mozzarella! It's so good and it's ready in minutes!
Spread pesto onto one slice of sourdough bread. Layer with mozzarella cheese, tomato, basil leaves and a drizzle of balsamic glaze. Top with second slice of sourdough bread.
Butter the bottom outside slice of the sourdough bread. Place into heated skillet or griddle. Cook until golden brown, about 3-5 minutes. Butter top outside piece of sourdough bread. Flip and cook until golden brown, about 3-5 minutes.
Remove the golden brown grilled cheese sandwich from the skillet or griddle. Cut in half and serve warm.