Prepare the pasta in boiling salted water according to the instructions on the packet. Pour into a sieve, quench and drain. In the meantime peel and finely dice the onion. Cut ham into strips.
Crumble bread. Melt 30 g fat in a pot, sauté onion in it. Dust with flour and sauté while stirring. Gradually deglaze with stock and 150 g whipped cream while stirring. Bring to the boil, season to taste with salt, pepper and 1 pinch of sugar.
Stir in the cheese. Add peas, ham and noodles. Place in an ovenproof dish, spread toast crumbs on top and spread 45 g fat in flakes on top. Bake in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for approx. 25 minutes.
In the meantime clean and wash the salad, pluck into bite-sized pieces and drain well. Mix sour cream, 50 g cream and lemon juice. Season to taste with 2-3 tablespoons of sugar. Mix with the salad and fill into a bowl.
Remove the casserole from the oven and serve. Serve salad separately.