1 lb. ground turkey (Packaged ground turkey is rarely exactly a pound. I just use whatever it is.)
1/2 c. - 1 c. bread crumbs (More bread crumbs make a firmer meatball. Fewer bread crumbs make a more tender meatball.)
1 egg
onion powder (I never measure this. I just keep adding until it smells right. Sorry.)
Combine everything. Shape the meatballs, put them in a pan and cover them with spaghetti sauce. Put the lid on the pan and cook on medium-high heat until the sauce boils. (About five minutes.) Stir. Turn heat to low and simmer (covered again) for about ten minutes.
Good luck!