Cook the Gemelli Pasta in well-salted water according to the instructions on the packet. Debark and grate the Gouda or grind in the machine. Cut the turkey breast fillet into cubes.
Prepare the sauce: mix the cream with the bechamel sauce and season with pepper, salt and beef stock powder.
Cut the cauliflower into small florets and cook in salted water for 10 minutes. Then fill the baking dish. Drain the Gemelli and add. Add the turkey breast fillet, mushrooms and olives. Pour the sauce over it and mix everything together. Pour the hollandaise sauce over it and sprinkle everything with the Gouda. Bake in a preheated oven at 180 ° C for about 20 minutes. Arrange and serve.