Preheat oven to 375*
Place turkey in pan.Stuff cavity with quartered onion.
Pat skin dry and sprinkle with salt and seasoning. Scatter second quartered onion around turkey to flavor your gravy.
Place bacon strips on turkey breast and legs. Cover tightly with lid or foil.
Roast in oven, checking occasionally for 2.5 hours.
Meanwhile place turkey neck, gizzards, heart, onion and celery in a small saucepan. Simmer for and hour and a half or so. You will use this to make gravy. You can also skip this step and use store bought stock.
Take top of roaster or foil off turkey. Roast till bacon is crispy, skin is golden brown and internal temperature of thigh meat is 165*, perhaps 1 more hour.
Remove turkey to carving board to rest for 45 minutes or so.
After resting carve turkey.
Strain juices from roasting pan into a fat separator or a measuring cup. Save 3-4 tbs of fat and discard the rest. If making your own stock, strain this into a cup as well. .
Pour fat into bottom of roasting pan on med high heat. Sprinkle Bread mix over fat and stir for 2-3 minutes to cook the mixture.
Pour in 1 cup of roasting juices and whisk till thick. Add stock till it has the consistency you like. Salt and pepper to taste.
Strain gravy into bowl and serve with turkey.