Separate the calamari tentacles from the bodies. Finely chop the tentacles, and set them aside.
4 large calamari with tentacles
Melt some cooking fat in a skillet placed over medium heat and sauté the garlic and onions.
2 cloves garlic, Cooking fat, 1 onion
Add the bell pepper and cook for 2 to 3 minutes. Add the chopped tentacles and cook for another 5 to 8 minutes.
1 red bell pepper
Add the kale to the skillet and cook, frequently stirring, until the kale has softened then remove the mixture from the heat.
5 oz. kale washed and chopped
Fill up each calamari with an equal amount of the filling, and close them up with toothpicks.
Now over medium-high heat, melt some more cooking fat in the same skillet.
Add the stuffed calamari to the skillet and brown all sides, about 2 minutes per side.
Pour the tomato puree into the saucepan. Add the parsley oregano, season with salt and pepper to taste, and give everything a gentle stir.
2 tbsp. fresh parsley, 1 tsp. dried oregano, 14 oz. tomato puree, Sea salt and freshly ground black pepper
Lower the heat to a simmer. Cover and cook for 35 to 40 minutes.
Adjust the seasoning and serve.