Quorn is a line of meat substitute products available in the UK, Ireland, the US, Australia, Sweden, and other countries. The key ingredient in their products is mycoprotein, which is Bright Line Eating friendly. However, be sure to check the ingredients because many of their products, especially the breaded ones and meat-substitute ones (like breakfast “sausages”) have flour in the first three ingredients, so definitely avoid those. The chicken substitute products (as long as they aren’t breaded) are fine. Just read the ingredients carefully to make sure there’s no flour in the first three ingredients.