Pomodori Ripieni (Stuffed Tomatoes)

Ingredients:

6 large ripe tomatoes
200g ground beef or a mix of beef and pork (optional)
1/2 cup cooked rice (optional)
1 small onion, finely chopped
2 cloves garlic, minced
1/4 cup grated Parmesan cheese
2 tbsp breadcrumbs (preferably fresh)
1 egg
Fresh basil leaves, chopped (optional)
Olive oil
Salt and pepper to taste
Fresh parsley for garnish
Directions: