Prepare stuffing according to directions. Spray a baking dish with nonstick spray.
Preheat oven to 350 degrees.
Season chicken with the pepper. Heat oil in frying pan and when hot, add the chicken and brown on both sides for about for 4 minutes per side.
Place chicken into prepared baking dish.
If you are using the homemade condensed soup, you will only need half of the recipe (1 1/4 cups). If you are using the canned condensed soup, you will use the entire can. Mix soup with rosemary and garlic then spoon soup evenly over the chicken.
Top chicken with stuffing (You will have a bit of the stuffing leftover – I used about 3/4 - 1 cup per each chicken breast.)
Bake uncovered for about 30 - 45 minutes in oven or until chicken is cooked through.
I like to turn on the broiler the last couple of minutes to toast the top of the stuffing.