Place on a baking sheet covered with foil, and put in the oven at about 200C for 25-30 minutes. While the meatballs are roasting, put the onions in a small pan with a little olive oil on low, and let sauté for about 10-15 minutes, adding balsamic halfway through. You will want to add a bit of water as well just to keep them from getting too sticky or burning.
Once the meatballs are done, remove from oven. Split rolls and add cheese slices to each side. Place in hot oven and toast for about 5 minutes. Then, cut meatballs in half, and add 3-4 to each sandwich, and onions, and scarf it! Just kidding, eat it slowly…I dare you.
1 package(about .5kg) of mince(beef, kangaroo, lamb, or combo)
3tbl worcestershire sauce
1tsp onion powder
1 clove garlic, diced
For Caramelized Onions:
½ brown or red onion, thinly sliced
1tbl balsamic vinegar
Tasty(white cheddar) cheese(optional)