Making Zucchini Lasagna comes together in several key steps. Follow this simple guide for a delicious outcome:

1. Preheat the Oven: Set your oven to 375°F (190°C).
2. Prepare Zucchini: Slice the zucchini into thin strips using a mandoline or sharp knife. Lay them out on paper towels and sprinkle with salt. Let them sit for 15-20 minutes to draw out excess moisture.
3. Mix Ricotta Filling: In a bowl, combine ricotta cheese, egg, garlic, oregano, basil, salt, and pepper. Stir until well blended. Set aside.
4. Sauté Zucchini Strips: After resting, pat the zucchini slices dry with a paper towel. In a skillet, heat olive oil over medium heat. Briefly sauté the zucchini for about 3-5 minutes until just slightly softened. Remove from heat.
5. Layer Ingredients: In a baking dish, spread a thin layer of marinara sauce on the bottom. Layer zucchini strips, followed by half of the ricotta mixture. Add another layer of marinara sauce on top. Repeat with another layer of zucchini, remaining ricotta, and marinara. Finish with a final layer of zucchini and top with mozzarella and Parmesan cheese.
6. Bake: Cover the baking dish with foil and bake in the preheated oven for 30 minutes. Then, remove the foil and bake for an additional 15-25 minutes, or until the cheese is bubbly and golden brown.
7. Cool: Remove from the oven and let cool for about 10 minutes before slicing. This will help the layers to set for easier serving.
8. Garnish: If desired, sprinkle fresh basil leaves on top before serving for added flavor and decoration.

You now have a delightful Zucchini Lasagna ready to be enjoyed!