Soak breadcrumbs in 100 ml milk. Peel onions and dice one finely. Cut the other into fine rings and put aside. Heat 1 tablespoon of oil in a frying pan and sauté the diced onions. Remove from heat and let cool. Finely chop the salami in the universal chopper. Knead minced meat, salami, egg, diced onion and soaked breadcrumbs. Season with 1/2 tsp salt and pepper.
Cook the pasta in boiling salted water according to the instructions on the packet. Form 4 large meatballs from the mince mixture. Heat 2 tablespoons of oil in a coated frying pan. Fry the meatballs in it for about 5 minutes on each side. Drain the noodles, rinse with cold water and drain. Wash and clean the rocket and drain well. Wash and halve the cherry tomatoes.
For the salad dressing, mix mayonnaise, sour cream and barbecue sauce. Stir with 150 m of milk until more liquid. Season to taste with salt and cayenne pepper. Mix noodles and sauce and put aside. Put the meatballs on a baking tray and cover with cheese. Bake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) for 6-8 minutes. In a hot pan, drain the bacon until crispy, take it out and let it drain on kitchen paper. Mix onion rings and flour and fry crispy in hot bacon fat.
Cut the gherkins diagonally into slices. Mix rocket and cherry tomatoes into the pasta salad and season again. Cover the meatballs with bacon, gherkins and onions, pin with skewers and serve with the salad.