Heat oven to 350. Place squash halves on a foil lined baking sheet, cut side up. Cover with foil and cook soft, approximately 1 hour. Remove from oven. Clean squash of seeds and peels, placing squash meat in a crockpot. Use bacon grease to cook sliced peppers. If not adding bacon, saute pepper pieces in 3 teaspoons oil. Empty skillet contents (oil included) into crock. Pour broth, equal amount water, ham seasoning, garlic and onion powders in crockpot and cook on high for 2 hours. Working inside the crock, use a whisk to process squash soup to desired consistency. Add cream to crock. Stir well. Top with crumbled bacon and soft bread rolls.