Preheat the oven to 200C (400F). Prepare the vegetable balls. Combine all the ingredients together, season to taste then form into small sized balls and place them on a greased baking tray. Bake for 30 minutes and use grill function for the last few minutes until they are a little golden brown on the outside. Prepare the sauce. Heat the oil in a sauce pan over high heat. Cook onion and garlic, for about 5 minutes until golden. Stir in red pepper and paprika. Add tomatoes, chili pepper, bay leaves, basil leaves and vegetable stock. Cover and let it simmer,stirring now and then until all vegetables are tender and liquid has evaporated. Add salt, sugar and pepper if needed. Serve them as appetizers or as part of the main dish.