1
1 1/2 to 2-pound flank steak
1 cup
flat leaf parsley cleaned and large stems removed, finely chopped (by hand or use food processor)
1/2 cup
baby arugula, finely chopped (by hand or use food processor)
2
cloves garlic, minced (you can add to parsley and arugula in food processor)
1/4 teaspoon
dried oregano
1/4 teaspoon
crushed red pepper flakes
1/2 cup
2 tablespoons olive oil
2 tablespoons
red wine vinegar
1
brioche pullman loaf or if you prefer a white pullman loaf
1/4 cup
mayonnaise
1
beefsteak or heirloom tomato, sliced
2 tablespoons
Chimichurri to mix with mayonnaise