Salt and pepper the chicken, then brown with oil in a large skillet over medium heat. (You don’t need to completely cook, just brown it.) Add the garlic and cook for a minute or two.
Spread chicken and onions in a 9x13” pan. Arrange potatoes and carrots around the chicken. Sprinkle with bacon, salt, and pepper.
Mix soup, sour cream, and milk in a small bowl till smooth. Pour over the top. Cover with foil and bake at 350° for 60-90 minutes or till veggies are tender.
Notes
-You can add more or less milk depending on how saucy you like it.