Spinach Pesto Grilled Cheese

Ingredients for Spinach Pesto:

• 1 cup baby spinach leaves
• 1 TBS olive oil
• 2 TBS walnuts pine nuts, almonds would also work
• 2 TBS Parmesan Cheese freshly grated
• salt pinch
• black pepper pinch

Ingredients for sandwiches:

• 4 pieces bread I like sourdough, crusty
• butter
• 6 lices gouda cheese could do a mix of gouda and mozzarella too, smoked
• ½ cup baby spinach
• spinach pesto prepared