For the Pesto: In the bowl of a food processor, combine the first 4 ingredients. Pulse until well blended. Slowly drizzle in the olive oil while the processor is running. Season to your liking.

For the Sandwich: 1. On one piece of bread, spread the pesto in an even layer using a knife or spoon. Spread the applesauce on top of the pesto. Lay the cheese on top on the spreads. Top with another slice of bread. Spread 1/2 tsp butter on the top slice of bread. Repeat this for the remaining three sandwiches.

Heat a large non-stick skillet over medium high heat and add the remaining butter to the pan. Once the butter is sizzling, place the non-butter side of the sandwich in the pan. You may need to do this two at a time. It is important to not over crowd the pan.