Preheat the oven to 350 degrees Fahrenheit. In a large bowl combine eggs, bread crumbs, mushrooms, carrot, onion, the 3 tablespoons of ketchup, the 1 tablespoon of mustard, Worcestershire sauce, and garlic.
Add ground beef; mix well. In a 3-quart rectangular baking dish, lightly pat the mixture into a 9x5-inch loaf. For glaze, in a small bowl combine the ½ cup of ketchup, brown sugar, and the 2 teaspoons of mustard; set aside.
Bake meatloaf for 75 to 90 minutes or until internal temperature reaches 160 degrees Fahrenheit, spooning glaze over meatloaf during the last 10 minutes of baking.
Let the meat loaf stand for 10 minutes. Using two spatulas, transfer loaf to a serving platter; cut into eight slices and then serve. Bon appetit! This is a good meal to have for dinner!