Pleasing Gourmet Grilled Pesto Cheese Sandwiches

Ingredients (7)

• + 2 teaspoons butter add to pantry
• + 2 slices sourdough bread add to pantry
• + 3 teaspoons pesto sauce add to pantry
• + 1 slice Muenster cheese add to pantry
• ✓ 1 slice provolone cheese
• + 1 cup baby spinach leaves add to pantry
• + 1 sprig fresh basil add to pantry