Form ground pork into small balls. Fry in 2 tablespoons of hot oil for about 10 minutes. Peel and wash the potatoes. Cut into slices. Pluck rosemary needles from the branch.
Fry the potatoes and one half of the rosemary in the remaining oil while turning for about 20 minutes. Season with salt. Peel onion and cut into large cubes. Peel garlic and cut into slices. Wash the zucchini, rub dry and cut into coarse pieces. Remove the meatballs from the pan. Fry onion, garlic and zucchini in the frying fat. Chop the tomatoes in the tin. Pour over the zucchinis. Add broth, bay leaves, remaining rosemary needles and thyme leaves, bring to the boil and cook over a low heat for 10 minutes.
Fry onion, garlic and zucchini in the frying fat. Chop the tomatoes in the tin. Pour over the zucchinis. Add broth, bay leaves, remaining rosemary needles and thyme leaves, bring to the boil and cook over a low heat for 10 minutes. Add the meatballs and olives and heat. Season to taste with salt and pepper. Add rosemary potatoes