The amounts and ingredients listed below are a guideline and can be adjusted to suit your tastes. Most important thing about a Pizza Grilled Cheese is to have fun with it!
Ingredients
1 tablespoon oil
½ cup finely sliced onion
½ cup finely sliced green pepper
½ cup chopped mushrooms (I used baby bellas)
6 slices bread (2 slices per sandwich)
butter (I use spray)
¾ cup shredded mozzarella cheese
12 to 15 slices pepperoni (4 to 5 per sandwich)
3 tablespoons grated Parmesan cheese
Instructions
Preheat oven to 400°F. Line a baking sheet with parchment paper and set aside.
Meanwhile, heat oil over medium-high in a nonstick skillet. Add onion, mushrooms and green pepper and saute until softened, stirring frequently (about 5 minutes). Remove from heat.
Lightly butter one side of each slice of bread. Put one slice, butter side down, on prepared baking sheet. Top that slice with sauteed vegetables, mozzarella cheese and pepperoni slices. Top with another slice, butter side up. Sprinkle top slice with 1 tablespoon grated Parmesan cheese. Repeat.
Bake in oven for 6 to 9 minutes, or until cheese has melted. Then switch the oven to broil to cook the Parmesan crust (about 1 minute, or until starts to brown (keep an eye on it!)
Recipe by Alida's Kitchen at https://www.alidaskitchen.com/2015/04/12/pizza-grilled-cheese-recipe/