4 leftover sandwich onions mushrooms Recipes

onions, sliced, butter, oil, white button mushrooms, sliced, fresh minced garlic (or to taste), beef broth, whipping cream (unwhipped), ketchup (can use more ), worcestershire sauce, dijon mustard, cooked leftover steak (sliced to about 1/8-inch thick ), salt and pepper, green bell pepper, seeded and thinly sliced, sliced mozzarella cheese or cheddar cheese, unsliced bread (use a large french or italian bread, sliced in half lengthwise)

unsalted butter, plus extra for bread, olive oil, sliced onion, sliced mushroom, garlic, minced, beef broth, heavy cream, catsup, worcestershire sauce, dijon mustard, grilled steak or 1 lb cooked roast beef, thinly-sliced, italian bread

green peppers or 1 small other bell pepper, baby portabella mushrooms or 1 cup button mushroom, sliced, sweet onion, thinly sliced, garlic clove, leftover london broil beef or 8 oz other steak, sliced across the grain and then cut into bite size pieces, deli provolone cheese, deli american cheese, monterey jack pepper cheese, olive oil or canola oil, crusty rolls or 2 italian bread or 2 french bread, your favorite barbecue sauce, drops habanero sauce, mayonnaise or mustard or ketchup or lettuce or tomatoes or pickles or olives or raw onions or jalapeno, etc