This Steak and Pineapple Casserole is a delicious and hearty dish that combines tender steak with sweet pineapple chunks. The steak is marinated in a flavorful sauce, then cooked with onions, bell peppers, and pineapple. The result is a savory and tangy casserole that is perfect for a family dinner or a potluck gathering. Serve it over rice or with a side of vegetables for a complete meal.