Place carrots in a food processor and pulse into small pieces. Remove and place in a large mixing bowl.
Place celery in the food processor and pulse into small pieces. Remove and place in the mixing bowl with the chopped carrots.
Place red bell pepper in the food processor and pulse into small pieces. Remove and place in the mixing bowl with the chopped carrots and celery.
Place croutons in the food processor and pulse into small pieces. Remove and place in the mixing bowl with the chopped carrots, celery, and red bell pepper.
Add diced onion, ground beef, Italian sausage, eggs, Worcestershire sauce, garlic powder, salt and pepper to the bowl.
Mix ingredients together until well combined.
Divide meat mixture into eight equal portions and press into a mini loaf pan or shape meat into one large loaf and place in a 13x9 inch casserole dish.
Bake for 50 minutes.
Remove meatloaf from the oven and baste with barbecue sauce.
Top with sliced cheddar cheese.
Return to oven and cook for an additional 5-10 minutes until cheese is melted and bubbly.
Check temperature of loaf by inserting a thermometer into the center of the loaf. Meatloaf is done when it reaches an internal temperature of 160°F.
Serve with a side of mashed potatoes.
Notes
One large single loaf will take longer to cook. It will take about 90 to 120 minutes to cook all the way through. Be sure to use an instant read thermometer to check for doneness.