Peel and finely dice the onions and garlic. Halve the chillies, remove seeds, wash and cut into fine strips.
Heat the oil in a large deep frying pan. Fry the mince in it until crumbly. Add onions, garlic and chilli and fry. Stir in tomato paste and sauté briefly. Drain the corn. Add the strained tomatoes to the mince.
Season with salt, pepper and rose paprika. Bring to the boil and simmer open for about 3 minutes. Wash and finely chop the oregano and stir into the minced meat. Let cool off.
Cut out 3 circles from each tortilla with a round cookie cutter (approx. 9 cm Ø). Grease the hollows of a muffin tray (12 hollows) and line them with 12 tortilla circles. Fill in half of the chopping mass.
Roughly grate the cheddar. Sprinkle tortillas with half of the cheddar. Bake in a hot oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer) for 10-15 minutes. Process remaining ingredients in the same way.