Grandma fixed this for our family ever since I was little. She obtained it from a ladyfriend in the 1940's in San Francisco, and has been a family favorite ever since, eagerly anticipated at family gatherings and certainly every Christmas Eve at Grandma & Grandpa's! Since moving to Texas six years ago, I've amended the original recipe a bit to add a bit of Texas heat, but I hope grandma won't mind! I hope y'all enjoy!
Combine onion, garlic, oil and butter in large turkey roaster pan (this will probably cover 2 stove burners). Simmer 15 minutes, stirring constantly.
Add diced tomatoes with juice, cream corn, eggs, cilantro, if using, milk, hamburger (pinch off in small bits and stir into mixture), chili powder(mixed with 1/2 cup water), polenta, cumin, chilis, olives, salt & pepper. Cook 10 minutes on top of stove, stirring constantly so mixture does not burn on bottom.
Transfer pan to oven and bake at 350° for 45 minutes uncovered. Let sit 10-15 minutes before serving.