Cut 2 zucchini into thin strips. Put them in salted water to boil until softened or cook them on a grill pan. If you've boiled them, put them on paper towels and dry them.
Arrange them in an oiled form so they cover its bottom and walls. Cut the meat into small bits and braise them. Grate the rest of the zucchini, strain them of the water and add them to the cooked meat. Stir until the zucchini soften and then add the pressed garlic.
Transfer the mixture to a colander to drain it from the oil. In a bowl, mash the feta cheese, add the cream, eggs and beat with a mixer. Add the meat and zucchini. Season with salt, black pepper, chopped dill and stir.
Pour the mixture into the form and bake in a preheated 356°F (180 °C) oven for about 1 hour. Wait for it to cool completely and invert it onto a plate.