2 tablespoons extra-virgin olive oil
2 yellow onions, diced
4 garlic cloves, sliced
Kosher salt
6 cups chopped greens (leaves only), such as chard, dandelion greens, kale
Black pepper, to taste
2 large eggs
4 thick slices country bread, toasted and rubbed with a cut clove of garlic
Grated Parmesan, for serving