Step 1

Preheat the oven to 325 degrees F.

Step 2

Place the carrot, celery, onion, red bell pepper, mushrooms, and garlic in a food processor, and pulse until very finely chopped, almost to a puree. Place the minced vegetables into a large mixing bowl, and mix in ground chuck, Worcestershire sauce, and egg. Add Italian herbs, salt, black pepper, and cayenne pepper. Mix gently with a wooden spoon to incorporate vegetables and egg into the meat. Pour in bread crumbs. With your hand, gently mix in the crumbs with your fingertips just until combined, about 1 minute.

Step 3

Form the meatloaf into a ball. Pour olive oil into a baking dish and place the ball of meat into the dish. Shape the ball into a loaf, about 4 inches high by 6 inches across.

Step 4

Bake in the preheated oven just until the meatloaf is hot, about 15 minutes.

Step 5

Meanwhile, in a small bowl, mix together brown sugar, ketchup, Dijon mustard, and hot sauce. Stir until the brown sugar has dissolved.

Step 6

Remove the meatloaf from the oven. With the back of a spoon, smooth the glaze onto the top of the meatloaf, then pull a little bit of glaze down the sides of the meatloaf with the back of the spoon.

Step 7

Return meatloaf to oven, and bake until the loaf is no longer pink inside and the glaze has baked onto the loaf, 30 to 40 more minutes. An instant-read thermometer inserted into the thickest part of the loaf should read at least 160 degrees F (70 degrees C). Cooking time will depend on shape and thickness of the meatloaf.