Cut the onion and bell pepper into cubes and sauté with the mushroom slices in a pan over medium heat for about 10 minutes.
In the meantime, cut the chicken breast into cubes, similar to goulash. Salt, pepper, sprinkle with the paprika powder and also fry in a little oil. Sliced or diced garlic cloves. When the pepper, onion and mushroom mixture appears translucent and everything is pleasantly firm to the bite, add to the chicken breast. Add the tomato paste, mix everything and continue to fry for 3 minutes over a mild heat. Add some water, season if necessary and let simmer for a short time.
Garlic or herb butter baguette and possibly a salad of your choice go with it.