For the wontons
For the tomato sauce
Preheat the oven to 200°C/400°F/Gas mark 6.
For the tomato sauce, put the sun-dried tomatoes in a saucepan with the canned tomatoes and sugar. Bring to a simmer, and continue to simmer for 5 minutes. Add the diced plum tomatoes and cook gently for 10 minutes, stirring occasionally. Remove the pan from the heat, and stir in the balsamic vinegar. Set aside.
Put the peppers, aubergine and courgette chunks in a large non-stick roasting tin, and mix in the garlic, dried herbs and oil. Season with salt and pepper. Roast in the oven for 30–40 minutes, stirring occasionally.
Cook the pasta in salted boiling water until al dente. Drain well. In a separate pan, heat the tomato sauce with the stock.
Put the vegetables and pasta in a large baking dish, and mix well. Pour the tomato sauce over them and mix through, then put the mozzarella cubes on top. Bake in the oven for 15–20 minutes until melted and golden. Leave to stand for 5–10 minutes before serving.