Simmer courgettes whole for about 5 minutes in salted water. Cut off tops; scoop out interiors, reserving pulp for stuffing.
Sauté meats and onion in olive oil. Mix garlic, herbs, beaten egg, grated cheese, rice and courgette pulp in a bowl, and then add them to the meat and onion mixture. Add salt and pepper, to taste. Sauté for