Prepare the Broccoli: Cut the broccoli into florets and boil them in salted water (using half the salt) for about 5-7 minutes until tender. Drain well and let cool slightly.

Blend the Main Dish Mixture: In a large bowl, mash the cooked broccoli with a fork until it’s broken down but still has some texture. Add the baking powder, eggs, oatmeal, sesame seeds, chives, garlic, remaining salt, and pepper. Mix everything together until fully combined.

Add the Cheese: Stir in the grated Gouda or mozzarella cheese. This will help bind the mixture and add a creamy, cheesy flavor.

Form the Bake: Grease a baking dish with olive oil and press the broccoli mixture evenly into it.

Bake: Preheat your oven to 350°F (175°C) and bake the dish for 25-30 minutes, or until the top is golden and firm to the touch.

Prepare the Zucchini Sauce: While the broccoli bake is in the oven, heat some olive oil in a skillet over medium heat. Add the chopped onion and sauté until soft and translucent. Then add the zucchini and cook for 5-7 minutes until tender. Stir in the celery or parsley for extra flavor.

Blend the Sauce: Once the zucchini mixture is cooked, blend it into a smooth sauce using a blender or food processor. Adjust the seasoning with salt and pepper as needed.

Serve: Cut the broccoli bake into slices and serve with the warm zucchini sauce drizzled over the top.