This lentil and brown rice casserole is a healthy and filling meal that is perfect for a family dinner. The lentils and brown rice are cooked in a savory tomato sauce with onions, garlic, and spices, and then baked in the oven with a layer of cheese on top. Lentils are a great source of protein and fiber, while brown rice is packed with vitamins and minerals. This casserole is also vegetarian, making it a great option for meatless Mondays. Serve with a side salad for a complete meal.