Preheat the oven to 350°F.
In a large frying pan, sauté onion in olive oil until softened. Add zucchini and mushrooms and cook until soft.
Mix in the low protein cheese. Season mixture with nutmeg, salt and pepper.
Place lasagna sheets into a pot of boiling water, cook for 4 minutes until soft and easy to fold. Cook lasagna sheets in two separate batches to prevent sheets from sticking together.
Divide the zucchini and mushroom filling between the 6 lasagna sheets and fold into 6 rolls.
Place lasagna rolls in a small baking dish and cover with tomato sauce. Drizzle with extra virgin olive oil.
Bake for 30 minutes. Cover dish with foil if the top starts to go brown.
Serve with fresh basil and a drizzle of balsamic vinegar.