Cut the ends off of the zucchini and cut in half lengthwise.
Using a vegetable peeler, peel long strips of zucchini (these will be your “noodles”) and set on a baking sheet lined with paper towels.
Dab zucchini strips with a paper towel to absorb the excess moisture.
In a large pot, add olive oil, onions, and garlic. Cook until translucent, about 4-5 minutes.
Add ground meat and cook for another 4-5 minutes, or until the turkey has browned slightly.
Pout in crushed tomatoes, basil, parsley, oregano, salt, pepper, tomato paste, and a bay leaf. Cover and let simmer for 30 minutes.
Preheat oven to 375F
In a bowl, combine ricotta cheese, egg, parsley, parmesan, salt, and pepper. Mix until well combined.
Using a baking dish, layer meat sauce, zucchini strips, ricotta mixture, and parmesan. Repeat until there are 3 layers total, ending with the meat sauce and topping that with parmesan cheese.
Bake for 50 minutes (times and temperatures may vary depending on the oven).