While the octopus is being cooked, we can start cooking the peas as well. Place a large pot over medium to high heat and let it heat well. Then add a little olive oil, onion, carrot, celery and sauté until caramelized.
Once the vegetables are caramelized, add the tomato paste, sauté for 2-3 minutes and add wine. Let the alcohol evaporate, add the peas, tomato, water, salt and pepper and mix.
Cover the pot with the lid and let the food boil for 20-25 minutes.
After 25 minutes, transfer to a baking dish, add the octopus and cook in a preheated oven at 180°C (360 °F) for 10 to 15 minutes.
When ready, serve the peas with octopus, sprinkling with some dill.