Preheat oven to 425 f.
In a large pan, add the avocado oil and heat over medium-high heat.
Once heated, add the turkey, diced onion, and all spices. Stir occasionally, until the turkey is fully cooked.
Add marinara to the mixture. Continue to cook until the sauce mixture is thickened.
Peel the zucchini, I highly suggest using a cheese slicer. It slices them to the perfect thickness, with little effort.
Add 1 layer of sliced zucchini to the bottom of a large pyrex pan, make sure they are slightly overlapping each other.
Add the meat sauce mixture on top of the zucchini layer and ½ cup of cheese.
Add the remaining zucchini, slightly overlapping each other.
Top with the rest of cheese.
Put in the oven, cook for 20-25 minutes, or until cheese starts to brown.
Let cool, and dig in!