Very tasty and fast. Make it a complete dinner just by adding a salad. It looks like a lot of steps, but it is easy. For a spicier dish, you can also use diced tomatoes with jalapenos. Do not use light or fat-free sour cream because it will curdle during baking. You can also add 1 cup of shredded, cooked chicken along with the black beans and corn in Steps 4 and 5. From the authors of 'Desperation Dinners.'