A delightful twist on a classic panini, featuring tender roast beef, aromatic pesto, and gooey mozzarella cheese, all grilled to perfection.
Spread one side of each bread slice with butter.
Ensure the butter is softened for easy spreading.
Place four slices of bread, buttered side down, on a preheated skillet.
Preheat the skillet to medium heat for even toasting.
Layer the roast beef, basil pesto, and mozzarella cheese evenly on the bread slices in the skillet.
Distribute the ingredients evenly for consistent flavor in every bite.
Top with the remaining bread slices, buttered side up.
Press gently to ensure the sandwich holds together.
Cook the sandwiches on medium heat, flipping once, until the bread is golden and the cheese is melted, about 4-5 minutes per side.
Use a spatula to press down slightly for a crispy texture.
Serve the sandwiches warm, optionally with a side of marinara sauce for dipping.
Cut the sandwiches diagonally for an appealing presentation.