1. In a large pot of water, boil carrots until soft. Drain well.
2. Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13 inch casserole dish.
3. Place carrots in a large mixing bowl and mash them well. Stir in butter, onion, cheese, green pepper, parsley, salt and pepper. Transfer to the prepared baking dish and top with bread crumbs.
4. Bake in a preheated 350 degrees F (175 degrees C) oven for 40 minutes.