Begin by thoroughly cleaning and washing the broccoli and cauliflower. Then, chop them into small pieces on a cutting board.
In a pot, add the broccoli along with boiling water and season with salt. Pour in the milk and cook for approximately 3 minutes.
In another pot, place the cauliflower, add boiling water and milk, season with salt, and cook for about 5 minutes.
Heat a non-stick skillet, drizzle some extra virgin olive oil, and add the chopped onion and carrot. Sauté for a few minutes until golden brown.
Drain the broccoli and cauliflower and transfer them to a pot. Add the diced bell peppers, chopped cherry tomatoes, and mix well. Then, add seasoning according to your taste.