Don, the point is to minimise insulin production. You can’t eliminate it. A tiny bit of sugar or flour here and there adds a tiny bit to the GI of a food, resulting in a tiny bit more insulin. A big plate of potatoes on the other hand adds a LOT of insulin, being high GI and GL.
I would wager a sausage with a bit of wheat in it is still pretty low GI.
Which is why I had sausage and egg for breakfast, with some beans (yes, I know)
Some chicken for lunch and an un-sweetened latte
And a chickpea/chicken salad for dinner.
There are off-diet things in there, but overall it’s significantly lower GI than a normal diet I reckon.