Preheat oven to 450 degrees.
In a skillet over medium high heat, cook the ground sausage, breaking up into pieces.
Stretch out the dough and spread ricotta on top. Sprinkle with cheddar cheese, sausage, apple, sage, and thyme. Season with salt and pepper, if desired.
Bake for 8-10 minutes, or until golden brown and bubbling.