Definition: In this task, you have to generate the title of the recipe given its required ingredients and directions.
Input: ingredients:  '1 large onion, sliced', '1 (14 ounce) can beef broth', '4 lbs beef boneless beef rump roast, fat trimmed', '2 tablespoons balsamic vinegar', '1 (2/3 ounce) envelope Italian salad dressing mix', '1/2 teaspoon salt', '1/4 teaspoon black pepper', '12 hoagie rolls, split', '1 large green bell pepper, thinly sliced', '12 slices provolone cheese, cut in half',<sep> directions: 'Place onion slices and broth in a 3 to 4 quart crock pot. Coat beef roast with vinegar. Put beef roast on top of onions in crock pot. Dust with dressing mix, salt, and pepper.', 'Cover. Cook on low 8 to 10 hours. Can cook longer if not to your desired doneness.', 'Before serving, take beef roast out of pot and cut into thin slices. Return the slices to the crock pot and mix well.', 'Serve beef on buns with bell peppers, cheeses, and mayo or other condiments of your choice.', 'I put a little cajun seasoning on the beef roast while cooking.'

Beef Au Jus Sandwiches