Clean and wash the cauliflower and divide it into florets. Cook in boiling salted water for about 15 minutes. Peel and finely dice the onion. Heat the oil in a pan. Brown the onion and the sausage meat.
Deglaze with cream and stock, bring to the boil. Add sauce thickener and bring to the boil again. Season to taste with pepper. Add peas. Drain the cauliflower and put it in a large casserole dish with the mead sauce. Grate mozzarella coarsely. Mix with the Gouda and sprinkle over the cauliflower. Bake in a preheated oven (electric: 200 °C/ gas: level 3) for about 15 minutes. Wash the parsley, chop finely and sprinkle over the casserole.
Drain the cauliflower and put it in a large casserole dish with the mead sauce. Grate mozzarella coarsely. Mix with the Gouda and sprinkle over the cauliflower. Bake in a preheated oven (electric: 200 °C/ gas: level 3) for about 15 minutes. Wash the parsley, chop finely and sprinkle over the casserole. Serve with mashed potatoes