Gut and rinse the squid. Cut the squid into small pieces and mix well with the finely chopped onion, chopped garlic cloves, grated toast, egg and chopped parsley. Fill the quantity into the calamari seasoned with marjoram, paprika and salt and close with toothpicks.
For the sauce, sauté the finely chopped onion in olive oil until soft, add diced tomatoes, finely chopped garlic and the remaining ingredients. Cook for a few min and pour over the stuffed squid form. Simmer gently for 20 minutes in a closed saucepan.