Unsloppy Joes (Easy Vegetarian Sloppy Joes)

My sister is a vegatarian, where as my family is not. So in order please both palates, I have to find recipes that non meat eaters enjoy as well as the carnivors. This dish is really easy, it quickly comes together; that is this "Unsloppy Joes" key aspect. From www.ivu.org

• Ready In: 25 mins
• Serves: 8

Ingredients

• 1  tablespoon olive oil
• 1⁄2 cup onion, chopped
• 1⁄2 cup celery, chopped
• 1⁄2 cup carrot, chopped
• 1⁄2 cup green pepper, chopped
• 1  garlic clove, minced
• 1 (14 1/2ounce) can tomatoes
• 1 1⁄2 tablespoons chili powder
• 1  tablespoon tomato paste
• 1  tablespoon white vinegar
• 1  teaspoon pepper
• 1 (15 1/2ounce) can red kidney beans (rinsed & drained)
• 8  kaiser rolls or 8  wheat hamburger buns

Directions

1. Heat olive oil in a large skillet.
2. Add onion, celery, carrot, green pepper, and garlic.
3. Saute until tender.
4. Stir in tomatoes and next 4 ingredients.
5. Cover, reeuce heat, and simmer 10 minutes.
6. Add kidney beans and cook an additional 5 minutes.
7. If using kaiser rolls: Cut a 1/4" slice off the top of each kaiser rolls; set aside.
8. Hollow out the center of each roll, leaving 1/2-in think shell;.
9. reserve the inside of rolls for other uses.
10. Spoon bean mixture evenly into rolls and replace tops.
11. Serve immiediately.
12. If using "hamburger" buns:.
13. Just spoon onto buns and serve.