Nutrition Facts

Ingredients
- 1 medium yellow onion, thinly sliced
- 1 teaspoon water
- 8 ounces sliced button mushrooms, coarsely chopped
- 2 medium red or green bell peppers, thinly sliced
- 1 pound boneless top sirloin steak, cut into 1/2-inch strips
- 2 tablespoons dried Italian seasoning, crumbled
- 1 tablespoon balsamic vinegar
- 1 1/2 teaspoons canola or corn oil
- 1 teaspoon garlic powder
- 1/4 teaspoon salt
- 1/4 teaspoon pepper (freshly ground preferred)
- 1 cup shredded fat-free mozzarella cheese
- 4 small whole-wheat rolls
Directions
- Preheat the oven to 450˚F. Make 4 sheets of aluminum foil about 30 inches long. Fold the foil in half widthwise (into almost a square) so it's extra-sturdy.
- Microwave the onions and water on 100% power (high) in a microwaveable bowl for 1 1/2 minutes, or until almost soft. Transfer to a medium bowl.
- Stir in the mushrooms, bell peppers, and beef.
- In a small bowl, whisk together the Italian seasoning, balsamic vinegar, oil, garlic powder, salt, and pepper. Pour over the vegetables and beef, tossing to coat.
- Place one-quarter of the mixture in the center of each foil square. Top each mixture with 1/4 cup mozzarella.
- Wrap the foil loosely (this leaves room for the heat to circulate inside) and seal the edges tightly. Transfer to a large baking sheet.
- Bake for 20 minutes. Using the tines of a fork, carefully open a packet away from you (to prevent steam burns). If the beef isn't cooked enough, reclose the open packet and bake all the packets for 3 to 5 minutes.
- Serve with the rolls.
Cooking Tip: Don't have mozzarella on hand? No problem. You can substitute another low-fat cheese, such as Swiss, for the mozzarella.
Keep it Healthy: When craving steak, choose top sirloin, flank, top round, or beef tenderloin. They are lean cuts of meat, making them healthy choices.
Tip: The directions call for microwaving the onions before being adding them to the packet because they need more cooking time than the other ingredients.