Place cilantro, Italian parsley, and garlic in a food processor, and pulse until chopped.
Add olive oil, lemon zest, lemon juice, ground cumin, ground coriander, paprika, red chile, and a pinch of Kosher salt, pulsing to combine. Season to taste with additional Kosher salt. The Chermoula should be somewhat thin and not completely smooth. You'll see bits of herb and spice in the sauce.
Preheat an oven to 450°F.
Toast bread in the oven until lightly golden (about 5 minutes).
Spread a spoonful of Chermoula over the toasted bread, then top with sliced hard-boiled egg, another drizzle of Chermoula, and several small parsley leaves. Season to taste with Kosher salt, and freshly ground black pepper.
Store any unused Chermoula in the refrigerator for up to 2 weeks.