Preheat your oven to 375°F (190°C).
Place the dry soya mince in a small heat-proof bowl and pour the hot vegetable broth over it, then let it sit for 10 minutes to fully rehydrate.
Heat the extra virgin olive oil in a large oven-safe skillet over medium heat.
Add the diced yellow onion, sliced cremini mushrooms, and diced zucchini to the skillet, sautéing for 6 to 8 minutes until the vegetables are tender and the mushrooms are browned.
Stir the rehydrated soya mince along with any remaining liquid, tomato passata, dried oregano, garlic powder, sea salt, and black pepper into the skillet.
Simmer the mixture for 5 minutes over low heat to allow the flavors to meld together.
In a small blender or food processor, pulse the low-fat cottage cheese and nutritional yeast until the mixture is completely smooth and creamy.
Spread the cottage cheese mixture evenly over the top of the soya mince and vegetables in the skillet using a spatula.
Transfer the skillet to the oven and bake for 15 to 20 minutes until the topping is set and the edges are bubbling.
Remove from the oven and let the bake rest for 5 minutes before serving to allow the sauce to thicken.