In a bowl large enough to contain the steak, combine all the ingredients to make up the marinade.
¼ cup extra-virgin olive oil, ¼ cup red wine, 2 cloves garlic
Butterfly the steak by cutting it length-wise and opening it up so that there is an evident seam along the middle.
1 flank steak or other thick steaks
Place the steak in the marinade and allow it to marinade for approximately 1 to 2 hours at room temperature.
Preheat your oven to 350 F.
Remove the steak from the marinade and keep the remaining marinade for later. Lie the steak open and fill it with prosciutto, bell pepper cubes, 2 tablespoon parsley, and ¾ of the basil.
6 slices good quality prosciutto, 1 red bell pepper, 3 tablespoon fresh parsley, 12 fresh basil leaves, Sea salt and freshly ground black pepper to taste
Allow the steak to lie vertically in front of you and roll tightly. You may need strings to keep the roll closed while cooking.
Place the rolled meat on a baking sheet, cover in the remaining marinade, and sprinkle with the remaining herbs.
Put in the preheated oven and allow it to cook for approximately 30 minutes.