Preheat oven to 350°F (180°C). Spread cubed cornbread on two large baking trays. Toast the cubed cornbread in the oven for 10 minutes, flip, and toast another 10 minutes until golden brown.
Remove and set aside.
In a large non-stick pan, brown sausage. Break it up into small pieces. This should take about 10 minutes. Remove and set aside.
In the same pan, heat vegetable oil. Saute onion, carrots, and celery for 3 minutes. Add apples and continue to cook for another 5 minutes.
Add rubbed sage, ground pepper, and rosemary.
Then return browned sausage and toasted cubed cornbread to the pan.
Also, add dried cranberries and apple juice. Stir to get everything well mixed.
Season with salt and continue to stir for another 1 to 2 minutes.
Transfer to a casserole dish. Cover with foil and bake at 350°F (180°C) for 20 minutes.
Remove and serve warm with roast turkey and gravy.