How to make
Wash all the vegetables, clean and cut them into pieces - rip the cauliflower into florets. Heat a little oil and sauté the chopped onions, carrots and celery until soft. Add the cauliflower, peas and potatoes, and after about 10 minutes, add the tomatoes and chopped parsley.
Season with salt and black pepper and transfer to a tray. In a little preheated oil, fry the flour, dilute it while stirring in the warm milk that you've beaten in advance with the eggs. Season the sauce with a little salt and pepper.
Once thickened, pour it over the vegetables in the tray and put to bake up to a nice tan in a moderately heated oven.
Finally, sprinkle it with grated cheese and return it to brown slightly in the oven.