Peel and finely dice the carrot, onion, and garlic. Rinse and halve the peppers. Remove the seeds and finely dice. Blanch the tomato in boiling salted water, then remove. Peel, halve, remove the seeds, and finely dice the tomato. Rinse and chiffonade the basil. Heat the oil in a pan, then sauté everything but the basil. Cook for 3-5 minutes over low heat. Season to taste with salt and pepper, and drain the liquid from the mixture.
Toast the bread in a toaster or under the broiler until golden brown. Mix the basil into the vegetable mixture. Top the bread with the vegetables, and serve on plates.