2 cans (4 ounces each) mushroom stems and pieces, drained
1 envelope pork gravy mix
Cut three 25-in. x 3-in. strips of heavy-duty foil; crisscross so they resemble spokes of a wheel. Place strips on the bottom and up the sides of a 6-qt. slow cooker. Coat strips with cooking spray.
In a large bowl, combine the eggs, cracker crumbs, onion, oats, cream, Worcestershire sauce, steak seasoning and pepper. Crumble beef over mixture and mix well. Shape into a loaf; place in the center of the strips. Arrange the potatoes, carrots and onion around meat.
In a small bowl, combine the soup, mushrooms and gravy mix; spread over meat and vegetables. Cover and cook on low for 5-6 hours or until no pink remains and a thermometer reads 160°. Spoon vegetables and gravy into a serving bowl. Using foil strips as handles, remove meat loaf to a platter; cut into 12 slices.