Prepare the Ingredients:

• Crumble the feta cheese and chop the sun-dried tomatoes and Kalamata olives.
• Wash and dry the spinach leaves.
• Slice the bread if not pre-sliced.

Assemble the Sandwich:

• Lay the slices of bread flat on a clean surface.
• Spread the feta cheese, sun-dried tomatoes, olives, and spinach evenly on one slice of bread.
• Place the slice of mozzarella or provolone cheese on top.
• Add fresh basil (optional) for extra flavor, and season with a pinch of salt and pepper.

Grill the Sandwich:

• Heat a skillet or griddle over medium heat and add the olive oil or butter.
• Once the skillet is hot, place the sandwich in the pan, pressing it down slightly with a spatula.
• Grill the sandwich for 3-4 minutes on each side, or until the bread is golden brown and crispy, and the cheese has melted.

Serve:

• Once the sandwich is grilled to perfection, remove it from the pan and let it rest for a minute before slicing.
• Serve immediately with a side of pickles, chips, or a light salad.