01 - In a bowl, whisk together flour, eggs, milk, melted butter, and salt until smooth and lump-free. Let batter rest for 10 minutes to allow gluten to relax.
02 - Heat a nonstick skillet over medium heat and brush lightly with butter or oil. Pour a small ladleful of batter, swirling to coat the pan thinly. Cook for 1–2 minutes until the edge lifts, then flip and cook 30 seconds on the other side. Repeat until you have 8 crepes, stacking with parchment in between. Set aside.
03 - Heat oil in a large skillet over medium heat. Sauté onion until translucent, about 3–4 minutes. Add garlic and cook 1 minute until fragrant.
04 - Stir in ground meat and cook, breaking up lumps with a spoon, until browned completely. Sprinkle with paprika and mix well to coat the meat evenly.
05 - Add tomato paste, salt, pepper, and broth. Simmer uncovered for 10–15 minutes, until most liquid evaporates and mixture thickens. Stir in parsley.
06 - Strain the filling through a fine-mesh sieve, reserving the pan juices for the sauce. Let filling cool slightly before assembling.
07 - Preheat oven to 350°F (175°C). Lightly grease a baking dish with butter or oil.
08 - Place a crepe on a work surface, add 2–3 tablespoons of filling along the lower third, fold in the sides, and roll up tightly. Repeat with remaining crepes and filling. Arrange seam-side down in the prepared baking dish.
09 - Whisk flour into sour cream until smooth and no lumps remain. Stir in reserved pan juices or broth until well combined.
10 - Pour sauce evenly over the crepes. Bake uncovered for 15–20 minutes, until heated through and sauce is bubbling around the edges.
11 - Garnish with extra parsley if desired. Serve hot with a green salad and dry white wine.