Preheat the oven to 375 F.
In a large skillet, melt coconut oil over medium heat.
Add the ground chicken and onion to the skillet. Break up the ground chicken and cook through.
Add the diced tomatoes, tomato paste, and broth to the skillet and stir to combine.
Sprinkle in the garlic, sage, thyme, basil and salt, and stir. Lower the heat to low, and let simmer while you prepare the zucchini.
Using a mandoline, thinly slice the zucchini lengthwise to make the lasagna noodles.
In a 9x11 baking dish, add a small amount of the sauce mixture to the bottom and spread out.
Lay down a single layer of the zucchini, then add about half the remaining sauce and spread out.
Add the second layer of zucchini, then top with the remaining sauce.
Bake in the oven for about 25 minutes. The sauce should be bubbly, and the zucchini tender when poked through with a toothpick.