1. Peel and slice the onions, then place them in a microwave-safe dish.
2. Cut the turkey breast slices into small cubes. Add them to the onions and mix.
3. Peel and slice the zucchinis into thin rounds. Arrange them in the dish, on top of the onions and turkey, slightly overlapping the slices.
4. Pour the heavy cream over the mixture.
5. Sprinkle with nutmeg, salt, and pepper. Sprinkle the grated cheese.
6. Microwave on high power for 15 minutes... it's ready!