1. Lightly sauté fresh spinach in olive oil until just wilted. Let it cool.

2. In a large bowl, mix ground beef, Italian sausage, breadcrumbs, Parmesan, eggs, onion, garlic, basil, parsley, salt, and pepper. Combine gently without overmixing.

3. On parchment paper, flatten the meat mixture into a rectangle about 1/2 inch thick.

4. Add spinach and mozzarella in an even layer down the center.

5. Roll it up tightly like a jelly roll, sealing the edges to keep the filling inside.

6. Transfer to a baking dish, seam-side down.

7. Spoon 1/2 cup marinara over the top.

8. Bake at 375°F (190°C) for 45–55 minutes or until internal temp reaches 160°F (71°C).

9. Let it rest for 10 minutes before slicing.

10. Serve with extra marinara and garnish with more Parmesan and basil.