Preheat the oven to 350 degrees. Heat oil in a large cast-iron or oven-safe skillet over medium heat. Add onion and bell pepper and cook, stirring occasionally, until tender, 10-12 minutes. Add crushed tomatoes, Morocco spice, 1 tsp salt and a pinch of crushed red pepper flakes, if desired. Stir to combine. Continue cooking, stirring occasionally, allowing the sauce to thicken and flavors to meld, about 10-15 minutes more. Stir in the feta and dill and season to taste additional salt, pepper and Morocco spice, as desired. Using the back of a wooden spoon, make six indents in the tomato sauce mixture. Crack eggs into the holes. Carefully transfer skillet to preheated oven and bake until the eggs are just beginning to set (with the yolks still runny), about 7-10 minutes. Garnish with fresh dill and serve warm, with crusty bread or grilled naan for dipping!