1. Cook pasta in 1 quart boiling water 6 minutes, omitting salt and fat. Add asparagus to boiling water, and cook 1 minute. Drain in a colander, and rinse with cold water until cooled. Drain.
2. While pasta and asparagus cook, combine roasted bell peppers and next 7 ingredients in a large bowl. Add tortellini and asparagus; toss gently.
Prosciutto (pro-SHOO-toh), also known as Parma ham, is a salt-cured ham that is typically sliced thin and often eaten raw or lightly cooked, making it perfect to use in quick-cooking recipes. A little prosciutto offers a powerful punch of flavor in this dish, so you'll only need to use a small amount.