2 TBSP olive oil, plus more for brushing the bread
12 Italian-style meatballs (recipe, or from your market’s deli case)
2 cups favorite marinaraÂ
16 oz. mozzarella, thinly sliced
1 baguette or Italian bread loaf, halved lengthwise
Garlic powder, for sprinklingÂ
Grated parmesan, for sprinkling (I use about 1 cup total)