Clean the red pepper and green bell pepper, then cut into small pieces. Peel the onion and dice it. Drain the kidney beans and corn.
Heat 1 tablespoon oil in a large pan over medium heat.
Add the diced onion and bell peppers to the pan and fry for 8 minutes.
Add the drained kidney beans and corn to the pan and fry for another 3 minutes.
Pour in the vegetable stock and tomato-chili sauce. Bring to a boil and simmer for 2 minutes. Season with salt, pepper, a pinch of sugar, and paprika powder to taste.
Wash the chives, shake dry, and cut into 1-inch pieces. Stir into the sour cream.
Transfer the pepper pan to serving dishes and top with the chive sour cream mixture.