How do you fix bland meatballs that are made already?
You could use a lot of different kinds of spices that you would
normally have in a spice cabinet, such as salt, any kind of spice
or herb (but smell them first if you normally don't work with them
because the smell is usually a lot like the flavor), or any kind of
REALLY GOOD SAUCE that you think would be good on them. Just
lightly season them, or if you want to use sauce, put the meatballs
in a saucepan with the sauce (just enough sauce to cover them about
half way) and stir them into the sauce on low heat for about 5
minutes. Or if you don't want to do that, then Cheese is also a
very good option. Just sprinkle some cheese on them and melt it on
them in the microwave, and when they are done, sprinkle some herbs
on them. Hope this helped!