1. Preheat broiler.
2. Cut bell pepper in half lengthwise; discard seeds and membranes. Place pepper halves, skin sides up, on a foil-lined baking sheet; flatten with hand. Broil 8 minutes or until blackened. Place in a zip-top plastic bag; seal. Let stand 5 minutes. Peel and chop bell pepper; place in a large bowl. Stir in olives, pesto, prosciutto, tomatoes, and artichokes.
3. Cook the pasta according to package directions, omitting salt and fat; drain. Add cooked pasta and 1/4 cup Parmigiano-Reggiano cheese to bell pepper mixture, and toss gently to combine. Spoon about 1 cup pasta mixture into each of 6 bowls, and sprinkle each serving with 2 teaspoons remaining cheese and 2 teaspoons pine nuts.
If you prefer crispy prosciutto, spread it out on a baking sheet and broil 4 minutes.