Brush pepper halves with some olive oil. Place halves, cut side down, on an unheated rack of a broiler pan.* Flatten slightly, splitting as necessary. Broil 3 inches from the heat until surfaces char. Place in a brown paper bag; let cool. Remove and discard skin. Cut into 1/2-inch-wide strips.
In a medium mixing bowl, combine the 1/4 cup olive oil, vinegar, Italian seasoning, salt, and pepper. Add broiled pepper strips. Cover; chill for 2 to 24 hours. Makes 10 to 12 servings.
Instead of broiling, you can roast the peppers by placing them in a 15x10x1-inch baking pan and baking them in a 450 degree F oven for about 20 minutes or until charred.