Preheat the oven to 200C.
Cut the aubergine, courgette, red onions, and large tomatoes into roughly 2cm chunks. Toss the veggies with salt, pepper, oregano, and olive oil.
Tip the veggies into a roasting tray and roast for 10 minutes.
Meanwhile, wrap the chicken thigh fillets each in a piece of streaky bacon.
Take the veggies out, then stir in the tin of chopped tomatoes. Place the bacon wrapped chicken on top, then pop it back into the oven for another 30 minutes, or until the chicken is cooked through.