until wilted. Season lightly with salt and pepper, then remove from the pan and set aside.
Step 3: Assemble the Sandwich
Lay out the bread slices. Spread a generous layer of the seasoned ricotta onto two slices. Top with a few spoonfuls of sautéed spinach, then sprinkle on the chopped sun-dried tomatoes. Add shredded mozzarella or provolone cheese for that classic melty finish. Place the remaining bread slices on top to form sandwiches.
Step 4: Grill to Golden Perfection
Brush the outer sides of the bread with olive oil or