01 -
In a skillet over medium heat, brown the ground beef until fully cooked. Season with salt and black pepper. Drain excess fat and set aside.
02 -
Spread softened butter evenly on one side of each bread slice.
03 -
Place the bread slices, buttered side down, on a clean work surface. Evenly distribute shredded cheese over two slices, then layer cooked beef and diced vegetables atop the cheese.
04 -
Cover with remaining bread slices, buttered side facing up.
05 -
Heat a skillet or griddle over medium heat. Cook sandwiches 3 to 4 minutes per side until bread is golden brown and cheese has melted.
06 -
Remove sandwiches from heat and allow to rest briefly before slicing. Serve warm.