Gather all of your ingredients.
Spread some butter onto the griddle insert.
Place two slices of bread onto the butter.
Place two slices of cheese onto each slice of bread.
Layer pepperoni onto the cheese.
Place your roasted red peppers onto the pepperoni.
Place your artichokes onto the roasted red peppers.
Place the banana peppers onto the artichokes.
Place your black olives onto the banana peppers.
Spread spinach on top of the black olives.
Place two slices of provolone cheese on top of the spinach.
Close the sandwiches with the other two slices of bread.
Turn the grill on, and close the lid.
Once the cheese is starting to get melted and the bread is toasted, flip your sandwiches over.
Once the other side of the sandwich is toasted and the cheese is melted, remove the sandwich from the heat and serve!