1. Lightly grease indoor electric grill or grill pan, then preheat over medium heat. Place meat loaf slices on grill. Be sure to carefully place, turn, and remove the slices to keep them in one piece. Grill 8 minutes or until heated through, carefully turning once halfway through grilling. Top with cheese. Grill 1 to 2 minutes more or until cheese is melted.
2. In small bowl combine mayonnaise, roasted garlic, and 2 Tbsp. of the roasted red peppers that have been finely chopped. Mash with a fork to combine. Spread mayonnaise mixture on one side of each bread slice. Top two slices with warmed meat loaf slices, arugula, remaining roasted red pepper strips, and remaining bread. Makes 2 sandwiches.
All-American Classic Meat Loaf:Preheat oven to 350 degrees F. In large bowl combine 2 lightly beaten eggs, 2/3 cup beef broth, and 1 Tbsp. Worcestershire sauce; stir in 2 cups sourdough bread cubes. Let stand 15 minutes. With fork, mash bread cubes into small pieces. Stir in 1/4 cup grated Parmesan cheese, 2 Tbsp. yellow mustard, 4 cloves minced garlic, 1 tsp. salt, 1/2 tsp. black pepper, and 1/4 tsp. crushed red pepper. Add 1 lb ground beef sirloin and 1 lb ground beef chuck, 1 medium chopped green sweet pepper, and 1/2 of a medium chopped onion. Using hands, mix ingredients together well (do not overmix.) Lightly pat meat mixture into 9x5x3-inch loaf pan.* With fingers, lightly pull loaf away from sides of pan.
Bake, uncovered, for 1-1/4 hours. For topping, in small bowl stir together 1/2 cup ketchup, 2 Tbsp. packed brown sugar, and 2 tsp. cider vinegar. Spoon on loaf. Bake 15 minutes more or until an instant-read thermometer inserted into center of loaf reads 160 degrees F.
Let stand 10 minutes. To remove, use two large spatulas inserted along short edges to lift loaf from the pan to platter. Sprinkle with parsley, green onions, and black pepper Makes 8 to 10 servings.
*Or shape the meat mixture in a 9-inch loaf in a baking dish. Bake as directed.