Serves 2 – Prep: 30 mins
Preheat the oven to 180°C fan.
Peel the carrot and cut out two long, wide slices, to form the base of the Christmas tree. Cut the remaining carrot into bite-sized slices and put into a baking dish. Cut open the peppers, deseed and cut out little stars with a star-shaped cookie cutter. Cut the remaining pepper pieces into bite-sized chunks and add to the baking dish with the cherry tomatoes.
Drizzle with olive oil and season with salt and pepper, then cover the baking dish with foil and bake in the preheated oven for 12 minutes.
While the vegetables are in the oven, prepare the pesto by putting all the ingredients in a small blender and whizzing to a smooth pesto.
Boil the tagliatelle in salted water for 5 minutes, reserving a small cup of pasta water. Drain and put back in the saucepan. Stir through the pesto and most of the roasted vegetables, leaving out the carrot tree stumps and two stars for the top.
Arrange the pasta in a triangle shape on two plates, and arrange some of the vegetables on the tree to form baubles. Put a star on the top of each tree and a carrot slice at the bottom to form the base.
Serve with more grated parmesan.