If the sun-dried tomatoes are not stored in oil, soak them in boiling water for five minutes, then drain. Chop the sun-dried tomatoes. Heat the olive oil over medium-high, then saute the onion, bell pepper, and garlic until tender (about three minutes). Stir in everything but the soy crumbles, bring to a boil, reduce heat, and simmer for 20 minutes, stirring occasionally. Add soy crumbles and cook until heated (around 2 minutes). Spoon into rolls to serve.