Preheat oven to 400F.
Brown ground turkey with onion.
Spray a 9" glass pie plate with cooking spray, and spread the meat mixture evenly in the dish.
Sprinkle with salt.
Sprinkle with cheddar cheese.
In small bowl, combine Bisquick, milk, and eggs.
Pour mixture into pie plate.
Bake uncovered at 400F for 25 minutes or until toothpick inserted into center comes out clean.