Cook the pasta as instructed on the package. Drain, reserving 1/4 cup of the cooking water.

Meanwhile, preheat oven to 200°C. Line a baking tray with non-stick baking paper. Place the tomato, cut side up, on the prepared tray. Season with salt and pepper. Bake for 10 minutes or until softened slightly.

Heat a large non-stick frying pan over medium-high heat. Cook bacon, stirring occasionally, for 5 minutes or until crisp and golden. Add tomato, pesto, and the reserved cooking water. Toss until well combined.

Mix sauce with pasta and serve.