3 mushroom steak appetizers Recipes

baby portabella mushrooms, fresh, boneless beef top sirloin steak , trimmed of fat and cut into 3/4 inch cubes (about 3/4 inch thick), white pearl onion (from frozen, but thawed ), balsamic vinaigrette, tomatoes, halved, balsamic vinaigrette, fresh parsley, chopped

beef tenderloin steaks (8 oz each), cut into 1/2-inch cubes, olive oil, divided, chopped fresh mushrooms, shallots, chopped, garlic cloves, minced, sherry or chicken broth, heavy whipping cream, salt, pepper, minced fresh parsley, frozen puff pastry, thawed, egg, beaten, sour cream, mayonnaise, prepared horseradish, minced chives, pepper, minced chives , optional