Veggie Loaded Meatloaf

Name: Veggie Loaded Meatloaf
Ingredients: FOR THE MEATLOAF:; 3 Tablespoons Unsalted Butter; ½ cups White Mushrooms, Minced; 2 Carrots, Minced; 2 stalks Celery, Minced; ½ Onion, Minced; 2 cloves Garlic, Minced; 1 Tablespoon Fresh Thyme; ¾ cups Panko Breadcrumbs; ½ cups Whole Milk; 1 Egg; 1 pound Ground Beef; 1 pound Ground Pork; ½ teaspoons Cayenne Pepper; ½ teaspoons Salt; 1 teaspoon Fish Sauce (can Substitute Worcestershire Sauce); 2 Tablespoons Fresh Parsley, Chopped; FOR THE GLAZE:; ½ cups Ketchup; 1 Tablespoon Mustard; 1 Tablespoon Coconut Aminos (can Substitute Soy Soy Sauce); Salt And Pepper, to taste