Wash the pepper, cut into rings, 2 cm wide, remove the seeds and partitions.
"Tails" to postpone.
Cut the onion and the postponed "tails" into cubes.
Mix the minced meat, egg, chopped vegetables, breadcrumbs and spices.
Stuff the pepper rings and place them on a baking sheet lined with parchment.
Mix the ketchup and brown sugar, and grease the surface of the peppers.
Send it to a preheated 180*C oven.
Bake for 35 minutes, then sprinkle with grated cheese and bake for another 5-8 minutes.