Zucchini Lasagna Rolls with Ricotta and Mozzarella in One Skillet Step-by-step instructions

Before you start

Set the oven rack in the middle position and heat the oven to 375°F (190°C). Wash and dry the zucchini, then trim the ends. Peel and finely mince one garlic clove. Chop the basil and keep a few whole leaves for garnish. Drain the ricotta in a fine sieve for about 15 minutes so the filling stays thick.

Grate the Parmesan finely on a box grater, and shred the mozzarella. Set everything near the work area in small bowls. Use a cutting board that is stable and dry, and keep a clean towel nearby for wiping hands. Having the components measured and ready makes the rolling step smooth, and it keeps the cheese from warming and softening while you work.

Instructions

Slice, season and roll the rolls

1. 1Slice the zucchini into ribbons
   Trim the ends of the zucchini. Slice each one lengthwise into thin ribbons with a vegetable peeler or mandoline, stopping when you reach the seedy core. Lay the ribbons on a clean board and pat them dry with paper towels so the rolls hold their shape.
   Look for Ribbons are thin, flexible and flat, bending without tearing when lifted.
   Tip Discard the seedy core or save it for another dish; only the outer ribbons are needed.
2. 2Make the garlic and cheese filling
   Finely mince the garlic clove. In a mixing bowl, combine the drained ricotta, grated Parmesan, minced garlic, chopped basil, kosher salt and black pepper. Stir until the mixture is smooth, fluffy and evenly seasoned.
   Look for Filling is smooth, pale green-flecked and spreads easily with a spoon.
   Tip Taste a small pinch of the filling before rolling and adjust the salt.

At the end of this phase you should have about eight thin zucchini ribbons rolled tightly around a fluffy, garlicky cheese filling. The ribbons should be flexible, the spirals neat and no filling should leak from the ends. The filling smells of garlic and basil and holds its shape on a spoon.

Before going on, check that each roll sits upright on the board without unrolling, and that the filling has been seasoned with salt and pepper. If a roll looks loose, tighten it gently and press the end under the spiral before moving to the skillet.

Simmer the sauce and arrange

3. 3Roll the zucchini around the filling
   Lay one zucchini ribbon flat on the board. Spread a generous layer of the cheese filling across it, leaving a small border at the end. Roll the ribbon up tightly into a spiral and repeat with the remaining ribbons until you have about eight rolls.
   Look for Rolls are tight, with no filling oozing out at the ends.
   Tip If a ribbon is too short, overlap two ribbons slightly before spreading the filling.
4. 4Simmer the tomato sauce
   Heat the olive oil in the cast-iron skillet over medium heat. Pour in the tomato sauce and simmer for about 5 minutes, stirring occasionally, until it has thickened and bubbles gently across the surface.
   Look for Sauce is thick, glossy and bubbling in slow, even pops.
   Tip Simmer the sauce until it no longer runs quickly off a spoon, so the rolls sit steadily on top.
5. 5Arrange the rolls in the sauce
   Reduce the heat to low. Set the zucchini rolls cut side up in the simmering sauce, spacing them evenly around the skillet. Spoon a little sauce over the tops of the rolls and sprinkle the shredded mozzarella over them.
   Look for Rolls sit in the sauce with mozzarella covering the tops.
   Tip Spoon sauce over any exposed filling so it does not dry out in the oven.

At the end of this phase the tomato sauce should be thick, glossy and bubbling gently across the skillet, with no excess water at the edges. The rolls should sit evenly in the sauce, cut side up, with a spoonful of sauce over each one and mozzarella covering the tops. Check that the sauce has reduced enough to coat a spoon and that the rolls are not touching the bottom of the pan in a way that could scorch. The skillet should look full and generous, with cheese evenly distributed across the surface, ready for the oven.

Bake, rest and finish

6. 6Bake until bubbling and golden
   Transfer the skillet to the oven and bake for about 25 minutes, until the cheese is fully melted, bubbling and lightly golden at the edges and the zucchini is tender when pierced with a knife.
   Look for Mozzarella is bubbling and lightly browned at the edges, and the zucchini feels tender when pierced.
   Tip Bake on the middle rack so the cheese browns evenly without the sauce scorching.
7. 7Rest, garnish and serve
   Let the skillet rest for about 5 minutes. Transfer the rolls to a cutting board with a spatula. Sprinkle the grated Parmesan over the top, scatter fresh basil leaves over them and serve while the cheese is still warm and stretchy.
   Look for Cheese stretches when a roll is pulled apart with a fork.
   Tip Use a spatula to lift each roll gently so the spiral stays intact.

At the end of this phase the mozzarella should be fully melted, bubbling and lightly golden at the edges, and the zucchini should be tender when pierced. The sauce should be bubbling at the rim and the rolls should hold their shape when lifted. Let the skillet rest for about 5 minutes so the cheese firms slightly. Before serving, check that the Parmesan has been sprinkled evenly and the basil leaves are fresh and bright. The rolls should lift cleanly with a spatula, and the cheese should stretch when pulled apart.

Common mistakes

The most common problem is wet filling. If the ricotta is not drained, the filling becomes loose and the rolls split open in the sauce. Another mistake is cutting the ribbons too thick, which makes them crack when rolled. Overfilling a ribbon also causes the cheese to squeeze out at the ends during baking.

Do not skip simmering the sauce; a thin sauce spreads under the rolls and makes the base watery. Finally, avoid baking on the top rack, where the mozzarella can scorch before the zucchini is tender. Watch the color of the cheese and move the skillet down a rack if it browns too quickly.

How to tell it’s done

The rolls are done when the mozzarella has melted completely, bubbles across the surface and has turned lightly golden at the edges of the skillet. The zucchini should feel tender when a thin knife slides through a roll without resistance.

The sauce should be bubbling at the rim, and the filling should look creamy and set rather than loose. Because this recipe has no raw protein, there is no meat temperature to reach. Let the skillet rest for about 5 minutes before serving so the cheese firms slightly and the rolls hold together when lifted.