Preheat oven to 400°F.
Over low to medium heat in a skillet melt butter and soften the onion and garlic, then lower heat and add:
Sauté until just softened. In a separate bowl mix together
Add the vegetables to beef mixture, then mix very well. Form into a log 2 1/2 inch diameter. Place in the center of a preheated oven for 6 minutes. While this is cooking, prepare the glaze. Whisk together in a small bowl:
After meatloaf has baked about 6 minutes, remove it from the oven and brush glaze over top. Return pan to oven and bake until meat is just cooked through, about 25 more minutes. Remove from oven and let cool slightly.