Prepare the Vegetables:
Preheat the oven to 375°F (190°C).
Using a mandoline slicer or a sharp knife, thinly slice the zucchini, eggplant, and carrots lengthwise.
Lightly salt the slices and let them sit for 5-10 minutes to remove excess moisture. Pat dry with paper towels.
Prepare the Ricotta Mixture:
In a bowl, mix ricotta, ½ cup mozzarella, Parmesan, egg, garlic powder, Italian seasoning, salt, and pepper until well combined.
Cook the Marinara Sauce:
In a pan over medium heat, heat olive oil and sauté garlic until fragrant.
Stir in marinara sauce, red pepper flakes, and basil. Simmer for 5 minutes, then remove from heat.
Assemble the Spiral Lasagna:
Spread ½ cup of marinara sauce on the bottom of a greased 9-inch round baking dish.
Lay the vegetable slices flat and spread a thin layer of ricotta mixture on each slice.
Roll up one slice and place it in the center of the dish. Wrap additional slices around it, creating a spiral pattern until the dish is full.
Pour the remaining marinara sauce over the spiral and top with the remaining ½ cup of mozzarella cheese.
Bake:
Cover with foil and bake for 30 minutes.
Remove foil and bake for an additional 10 minutes, until cheese is melted and golden.
Serve:
Let it rest for 5 minutes, then garnish with fresh basil and serve warm!