Make your next gathering unforgettable with our Chicken Parmesan Portabella a la Tonini. This delectable Italian dish showcases juicy chicken paired with Portabella mushrooms, accompanied by a vibrant mix of onions, yellow squash, zucchini, and both green and red bell peppers. Enhanced with a savory basil garlic sauce and topped with bubbling provolone cheese, it's a feast for the senses. Ideal for holidays, Father's Day, or any celebration!