Preheat the Oven: Get your oven ready for baking by preheating it to 180°C (350°F).

Sauté the Aromatics: In a large skillet, heat a drizzle of olive oil over medium heat. Add the chopped onion and sauté until softened and translucent, about 5 minutes.

Veggie Medley: Add the grated carrot and sliced mushrooms to the skillet with the softened onion. Cook for an additional 5 minutes, or until the vegetables are tender.

Tomatoes Join the Party: Stir in the chopped tomato and cook for another minute or two, allowing the flavors to meld.

Thicken the Sauce: Add the butter to the skillet and let it melt. Then, sprinkle in the flour and stir well to coat the vegetables. This roux will help thicken the sauce.

Creamy Dream: Gradually whisk in the heavy cream, ensuring there are no lumps. Bring the mixture to a simmer and cook for 5-7 minutes, or until the sauce thickens and becomes smooth. Season with salt, nutmeg, and pepper to your taste.

Layer It Up: In a baking dish, arrange the sliced zucchini in a single, even layer. Pour the creamy vegetable sauce over the zucchini slices.

Cheesy Finish: Sprinkle the shredded cheese and chopped fresh parsley over the top of the dish.

Bake to Perfection: Bake the assembled zucchini bake in the preheated oven for 10 minutes. You're looking for melted and bubbly cheese on top.

Serve and Enjoy!: Take the zucchini bake out of the oven and let it cool slightly before serving. Enjoy this hot and comforting dish alongside a side salad or crusty bread for a complete meal. Bon appétit!