Cook potatoes according to instructions on packaging.
Rinse the fish and pat dry. Drizzle with lemon, then season with salt, black ground pepper, and 1 clove minced garlic. Sprinkle spices; paprika, oregano, and turmeric), then coat in 2 tablespoons of flour.
Prepare the spinach layer. Heat 1 tablespoon of olive oil in a frying pan. Add a second garlic clove and fry for 2-3 minutes until fragrant. Add the spinach and stir for about 4-5 minutes until wilted.
Next, add the milk, season with salt and pepper, then heat for 2-3 minutes. Add half a tablespoon of flour and mix well.
In a small bowl, mix the bread crumbs, parmesan, and 2 tablespoons of olive oil.
Arrange the fish on a baking tray greased with a little olive oil. Top the fish with a layer of spinach and sprinkle with breadcrumb mix.
Bake in the preheated oven for 20 minutes. Serve with baby potatoes.