London broil recipe

1/2 cup olive oil ▢1/3 cup soy sauce low sodium is fine ▢1/4 cup Worcestershire sauce ▢1/4 cup lemon juice ▢1/2 teaspoon lemon zest ▢1 tablespoon minced garlic ▢1 tablespoon dried Italian seasoning ▢1/2 teaspoon crushed red pepper flakes optional ▢1 teaspoon black pepper ▢1/2 teaspoon kosher salt ▢1/2 teaspoon onion powder ▢1 teaspoon smoked paprika ▢2 pounds London broil roast such as top round or sirloin ▢2 tablespoons fresh parsley chopped