Reserve 1/2 cup each of cheddar and jack cheese for topping. Unwrap and chop the tamales in to bite-sized pieces. Add all ingredients and mix well. Place in greased 2 quart casserole dish. Bake uncovered at 350° for 1 hour. Remove from oven. Add reserved cheese to the top and place back in the oven for an additional 5 minutes, or until cheese melts. Top with green onions or scallions. This dish pairs well with a tomato and and cucumber basil salad, with vinegarette dressing.
This recipe can also be made with canned tamales. You would need to use two 14½ cans.