Rinse and soak beans overnight or for at least 2 hours in HOT water. Pour off juices.
Place beans in large saucepan. Add water so beans are at least 2 inches "under" water. Bring to a boil. Reduce heat to medium high so that beans continue to cook at a gently rolling boil. Cook for 1.5 - 2 hours, until beans are soft.
As beans are cooking, add 1/2 can of tomato sauce (save rest to make spanish rice!), can of diced tomatoes and green chiles, chopped onion, corn, cumin and salt/pepper. Whisk in 1 tsp cornstarch to thicken soup a little.
Cook 1 cup of rice in 2.5 cups of water. Bring water boil. Add rice. Return to boil. Add other 1/2 can of tomato sauce. Add 1/2 packet of Casa Noel seasonings. (Now, add other half of Casa Noel seasonings to soup.) Cover rice and simmer for 20 minutes.
Shuck and boil corn for 3-4 minutes in large saucepan.
Serve soup with corn and spanish rice on the side. (Garnish with sour cream and shredded cheese if you like!)