Creating this crustless quiche is straightforward and rewarding. Follow these steps to achieve a beautiful dish:

1. Preheat Oven: Set your oven to 375°F (190°C) to heat while you prepare the mixture.
2. Prepare your Vegetables: Dice the zucchini, bell pepper, onion, and chop the spinach. Halve the cherry tomatoes and set aside.
3. Whisk Eggs and Milk: In a large mixing bowl, crack the eggs and pour in the almond milk. Whisk together until well combined.
4. Season: Add garlic powder, onion powder, salt, and pepper to the egg mixture, stirring until fully integrated.
5. Combine Vegetables: Gently fold the prepared vegetables (zucchini, bell pepper, spinach, onion, and tomatoes) into the egg mixture, ensuring even distribution.
6. Grease Baking Dish: Lightly grease a pie dish or a 9-inch round baking dish with olive oil or cooking spray to prevent sticking.
7. Pour Mixture: Transfer the vegetable and egg mixture into the greased baking dish, smoothing the top with a spatula if needed.
8. Bake: Place the dish in the oven and bake for 30-35 minutes, or until the quiche is set and a toothpick inserted in the center comes out clean.
9. Cool: Once baked, remove the quiche from the oven. Let it cool for 5-10 minutes before slicing to allow it to firm up.
10. Slice: Cut into wedges and prepare to serve or store the surplus for future meals!

Following these steps will guide you in creating a delicious Crustless Garden Vegetable Quiche effortlessly.