Meat Loaf Sandwich

• 1 (16-ounce) Italian or sourdough bread loaf
• 2 1/2 tablespoons butter or margarine, divided
• 1 small onion, chopped
• 1/2 (8-ounce) package sliced fresh mushrooms
• 1 large egg
• 6 to 7 tablespoons ketchup, divided
• 1 1/2 cups (6 ounces) shredded Cheddar cheese, divided
• 1 pound lean ground beef
• 1/2 cup dry red wine or beef broth
• 1 teaspoon garlic salt
• 1/4 teaspoon dried thyme
• 2 to 3 tablespoons mayonnaise

1. Cut bread loaf in half lengthwise. Scoop out bread, leaving 1/4-inch-thick shells. Tear reserved bread into pieces, and measure 1 1/2 cups, reserving remaining bread pieces for other use. Set bread shells and 1 1/2 cups breadcrumbs aside.
2. Melt 1 1/2 tablespoons butter in a large skillet over medium heat; add chopped onion and mushrooms, and saute 8 minutes or until tender.
3. Stir together egg and 2 tablespoons ketchup in a large bowl. Add onion mixture, 1 1/2 cups breadcrumbs, 1/2 cup cheese, ground beef, and next 3 ingredients, blending well. Shape mixture into a 6- to 7-inch loaf. Place on a lightly greased rack in a roasting pan.
4. Bake at 350u0b0 for 1 hour or until done.
5. Spread bottom bread shell with mayonnaise; top with meat loaf. Top with remaining ketchup; sprinkle with remaining 1 cup cheese. Top with remaining bread half. Melt remaining 1 tablespoon butter; brush over bread top. Wrap in aluminum foil.
6. Bake at 350u0b0 for 10 to 15 minutes or until heated.

italian, butter, onion, mushrooms, egg, ketchup, cheddar cheese, ground beef, red wine, garlic salt, thyme, mayonnaise

Taken from www.myrecipes.com/recipe/meat-loaf-sandwich (may not work)