For the stuffed peppers, cut the peppers lengthwise and remove the skin and seeds. Brush inside and out with olive oil.
For the stuffing, peel and finely chop the onion. Heat olive oil in a pot and fry the onions until golden. Add some tomato paste and stir well. Add the minced meat and the finely chopped garlic and roast well. Add tomatoes, corn kernels and beans, season with chili powder, cumin, salt and pepper. Cook the chili for at least 30 minutes.
Lift the chili out of the pot with a perforated ladle and fill the slit pepperoni with the mixture. Sprinkle with grated Gouda and grill on the grill grate – possibly in a grill cup – for about 7 minutes.