200g/2 cups mozzarella (shredded or slices, not fresh)
a handful of cilantro leaves
For the meatballs: Preheat the oven to 400°F / 204°C convection.*
Place the bread crumbs in a large mixing bowl. Pour the milk over them, and let them sit for about 5 minutes to absorb it. They should become bread-like and mushy, but not soggy.
Combine the hydrated bread crumbs with the ground beef, cilantro, green onion, pepper, garlic, and half the salt. Mix everything together evenly, but careful not to over-mix it or compress it.
Shape the meat mixture into about 20 meatballs, each weighing about 50g. Do not squeeze the meatballs together too tightly—they shouldn’t be perfectly smooth.
Place them on a parchment-lined 18×13 inch sheet pan, sprinkle each meatball evenly with the remaining salt, drizzle evenly with 1 or 2 tablespoons of olive oil, and bake for about 15 to 20 minutes. If they aren’t browning to your liking, feel free to place them under the broiler or turn the heat all the way up for the last couple minutes of baking (keep an eye on them, to make sure they don’t burn). While you’re waiting, make the sauce.
For the tomato sauce: Heat the olive oil over medium heat in a 10-inch skillet for 1 minute. Add the onions and garlic and cook for about 5 minutes, stirring occasionally.
Add the diced tomatoes with their juices. Cook for about 15 minutes, stirring every minute or so, until the tomatoes dissolve into a thick sauce and their juices evaporate. If you’re not using a wide frying pan (e.g., if you’re using a tall saucepan), this may take longer.
Add the salt, dried mint, crushed red pepper, and oregano, and give it a stir. Remove from heat, add the lemon juice, and stir together. The sauce should not be too thick or too thin (there should not be any runny liquid. If it’s too runny, return to heat for a couple minutes, until it’s the right consistency).
To assemble: Preheat the broiler.
Cut the baguettes almost all the way through, and then open them like books. Place on a sheet pan cut-side-up. Place the baguettes under the broiler for just a couple minutes to toast them (this takes about 4 minutes in my broiler, but it may take less in yours).
Remove the baguettes from the broiler, and place the meatballs evenly over the baguettes. Spoon some banadurah harrah over the meatballs, followed by the mozzarella (1/2 cup per sandwich). Broil them just until the cheese melts and bubbles (about 3 minutes in my broiler). Garnish with cilantro and serve immediately.
* If you don’t have a convection oven, no worries—they might just take a little longer to bake, and you might need to increase the temperature a bit to get them to brown.