Prepare all ingredients before starting. Chop the veggies and herbs as directed above.
In a pan on medium high heat a 1 TB of oil then toss in onions, garlic and carrots for about 5 minutes while mixing them around. Lightly season with salt and pepper. Cook until onions are translucent and ingredients are fragrant.
Remove from heat and set aside to cool
In a large mixing bowl add in ground meat, cooked veggies, worcestershire sauce, salt, pepper, herbs and sun-dried tomato. Mix.
Then toss in breadcrumbs, egg and pour in buttermilk. Give the meatloaf a good mix until everything looks evenly combined.
Cover and allow to sit for about 15-20 minutes for flavors to work together if you have the time. While waiting make the glaze below.
Preheat oven to 350°F
Once glaze is made form the meatloaf on a sheet pan. You do not have to put it in a loaf pan unless you want to. The binder is strong enough where the meatloaf will not come apart.
Cover the meatloaf with the glaze then place in the oven for an hour or the meatloaf reaches your desired temp.
With leftover glaze brush the meatloaf one more time. Allow it to cool a bit before serving.