Slice up the cube steak into thin strips. Season with salt, garlic powder, and pepper and cook in a little oil. Alternatively, you could use ground beef. Once the meat is cooked add to your casserole dish.
Then in the same skillet add in sliced peppers and onions, adding a little more oil if needed. Cook these just until they start to become soft, then add on top of the meat.
Again to the same skillet add in the heavy cream and cream cheese. Cook on medium low until the cream cheese and cream combine. Pour over the meat and peppers.
Top with cheese and bake at 350 for 20 minutes or until the cheese starts to brown.