In a Dutch oven, cook sausage, ground beef, onion, and garlic over medium heat until well browned.
Stir in crushed tomatoes. Season with coconut sugar, basil oregano, thyme, 1 teaspoon salt, and pepper. Simmer, covered, for about 20 minutes, stirring occasionally.
Preheat oven to 375 degrees F.
To assemble, spread 1 1/2 cups of meat sauce in the bottom of a 9x13 inch baking dish. Arrange noodles or zucchini slices lengthwise over meat sauce. Spread cashew ricotta on top of meat sauce. Repeat layers once. If desired sprinkle dairy-free parmesan cheese on top.
Cover with foil and bake in preheated oven for 25 minutes. Remove foil, and bake an additional 25 minutes. Cool for 15 minutes before serving.