Italian Beef Sandwiches

Ingredients

• 2 cups beef broth
• 1 teaspoon sea salt
• 1 1/2 teaspoon ground black pepper
• 1 teaspoon dried oregano
• 1 1/2 teaspoon onion powder
• 1 1/2 teaspoon garlic salt
• 1/2 Johnny's(R) au jus concentrate
• 3 (.7 ounce) package dry Italian-style salad dressing mix
• 1 (5 pound) rump roast
• 1/4 cup Dales(R) steak seasoning
• 1 large yellow onion
• 1 red bell pepper
• 1 green bell pepper