How to Make It
Preheat the oven to 375°. In a large roasting pan, toss the bell peppers with the onions, tomatoes, olive oil and crushed red pepper and season with salt and black pepper. Roast for 40 minutes, until the peppers are tender.
Increase the oven temperature to 400°. Add the garlic, thyme sprigs, capers and oregano to the roasting pan and stir them in. Nestle the sausages into the vegetables. Using a sharp knife, prick the sausages in a few places. Roast for 20 minutes, until the sausages are cooked through and browned in spots. Stir in the vinegar, sprinkle with the basil and serve.