Cook the spaetzle in salted water according to the instructions, drain and transfer to a large bowl.
Fry the minced meat until crumbly and season. Add the peppers and stew until soft. Now fry the tomato paste a little and deglaze with the stock. Melt the cheese in it. Add to the spaetzle, stir and pour into a baking dish.
This can now be served immediately if required or warmed up in the oven at 180 ° C for approx. 20 minutes.