Finely slice the onion and chop the garlic. Cut the courgette, red pepper and aubergine into bites-sized chunks.
Heat 1 Tbsp olive oil in a frying pan and gently sauté the garlic for about 5 minutes, until soft. Add the oregano and the chopped vegetables. Add a drop more oil, then cook, under cover for 5 minutes.
Add the tomatoes, season with salt &pepper then cook, under cover, for another 10 minutes or so, until the vegetables are tender.
Meanwhile cook the pasta according to the packet instructions, then drain and keep warm.
Mix the vegetables with the pasta and serve with fresh chopped herbs and grated/crumbled cheese or chilli flakes if liked.