How to cook
Clean the calamari, cut off the head and tentacles, chop them finely. Chop the onions finely, peel and grate the tomatoes.
Heat 4-5 tbsp olive oil and braise the onions in it, chopped calamari head and tentacles, chopped parsley and half the tomatoes. Season with salt and black pepper. Let simmer until part of the water evaporates. Add the rice, then leave it for another 10 min. on low heat.
Stuff the calamari with the prepared mixture but not to the top, so that there's room for the rice to swell. Sew them close and fry in the remaining olive oil.
Arrange the fried stuffed calamari in an oven dish, cover with the rest of the tomatoes, the roundly sliced lemon and olive oil from the frying. Bake everything for another 45 min. at 350°F (175 °C).