Samak Imtabal Maqli (Lemon-Stuffed Fried Fish with Green Chile Rub)

Ingredients

• 2 whole red snapper (about 1-lb. each), cleaned and scaled
• 1⁄3 cup finely chopped dill
• 1⁄4 cup olive oil
• 1 tbsp. ground cumin
• 2 tsp. ground coriander
• 1 tsp. freshly ground black pepper, plus more to taste
• 8 cloves garlic, minced
• 2 serrano chiles, minced
• Zest and juice of 1 lemon, plus 2 lemons, thinly sliced, and wedges for serving
• Kosher salt, to taste
• Toothpicks, for sealing
• 1 cup flour
• Canola oil, for frying
• Flatbread, for serving (optional)