That sounds interestingly different, have you got a recipe?
I have but it is copyright so I cannot reproduce it. It is in the book "Inspiralize Everything" by Ali Maffucci. She has a website with lots of recipes, but apparently not that one. The website is here:
http://inspiralized.com/. In the book the recipe is called "Winter Lasagna with Brussels Sprouts and Chicken Sausage."
The recipe uses 6 cups of brussels sprouts (!!!).
Just in general, "spiralizing" or "zoodling" is a great way to do interesting things with vegetables, in my experience. The Maffucci book is just one of several sources for "spiralized" recipes.
Edited to add: My wife and I quite often cook from that book but most of the recipes are not very low carb. For instance the lasagna recipe mentioned above has 23g of carbs per serving. On my carb budget, it is the kind of thing I eat mainly as a treat (and in small portions). Most of the recipes in the book would have more than 20g of carbs per portion. (The author does, helpfully, list the grams of carbs per portion for each recipe.)