3 easy paninis Recipes

frozen cooked italian style meatballs , about 1 lb, pizza sauce, hoagie rolls, provolone cheese, loosely packed large basil leaves or 1 cup spinach leaves

extra virgin olive oil, portobello mushroom caps , cut into 1/4-inch slices, whole grain whole wheat bread, provolone cheese or 8 slices mozzarella cheese, red onion, thinly sliced , about 1 cup, baby spinach leaves, roasted red peppers, drained and sliced, kosher salt, fresh ground black pepper