Peel and finely dice the onion and garlic. Carve the chilli pepper lengthwise, remove seeds and chop finely. Cut ham into small cubes. Rinse and drain beans and corn. Wash parsley, chop coarsely.
Wash the peppers, cut them in half lengthwise, remove the seeds and place on a baking tray. Heat oil for the filling. Fry onion, garlic and chilli in it. Deglaze with tomato pulp, bring to the boil briefly.
Fold in prepared ham, beans, corn and parsley. Season with salt, pepper and lemon juice and fill into the pepper halves. Sprinkle with cheese. Cook in the preheated oven (electric cooker: 200 °C/ gas: level 3) for 10-15 minutes.
Serve with taco chips and crème fraîche. Garnish as desired with chilli pepper, parsley and lemon.