Set crock pot on low heat. Meanwhile, prepare rub of garlic powder, salt, and pepper. Additional add ins are to taste but not needed. Rub meat with dry mixture.
Place beef choice inside crock pot and pour 2-3 cups of coca cola over meat.
Peel 3 carrots and dice about 1/2 inch thick. Peel potatoes and dice into 4 cubes each potato.
Add 1 can of cream of mushroom.
Check meat after 4-6 hours. Let sit in crock pot for 8-18 hours.
20 minutes before ready to serve, make rice according to directions.
Add salt and pepper to taste.