Defrost the peas. Cook pasta in boiling salted water for 6-8 minutes. Peel and finely dice onions. Heat oil. Sauté onions and minced meat in it while turning. Season with salt and cayenne pepper.
Fold in the peas. Put the prepared minced meat and noodles alternately into an ovenproof dish. Grate cheese for the sauce. Let the milk boil down for about 5 minutes. Melt cheese in it. Whisk eggs and stir in.
Season to taste with salt and pepper. Pour over the casserole. Spread the fat in flakes on top. Sprinkle with breadcrumbs. Bake in the preheated oven (electric: 200 °C/ gas: level 3) for 15-20 minutes.