Creating stuffed zucchini is easy if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Prepare Zucchini: Cut the zucchinis in half lengthwise. Scoop out the seeds to create boats and set aside the flesh.
3. Cook the Filling: In a skillet over medium heat, add the diced onion and minced garlic. Sauté until the onion is translucent.
4. Brown the Meat: Add the ground turkey or beef to the skillet. Cook until browned, breaking it apart with a spoon.
5. Mix Ingredients: Stir in the cooked quinoa or rice, diced tomatoes, Italian seasoning, salt, pepper, and the reserved zucchini flesh. Mix well.
6. Fill Zucchini Boats: Place the zucchini halves on a baking dish. Spoon the filling into each zucchini boat, packing it gently.
7. Add Cheese: Sprinkle shredded mozzarella cheese over the filled zucchini.
8. Bake: Cover the dish with foil and bake for 25 minutes. Remove the foil and bake for an additional 5-10 minutes, until the cheese is bubbly and golden.
9. Garnish: Once out of the oven, let the zucchini cool for a few minutes. Garnish with fresh basil leaves before serving.

These steps will guide you in creating this incredible dish effortlessly!