Name: Sheet Pan White Pesto Lasagna.
Prep time: 25 min
Cook time: 25 min
Total time: 50 min
Ingredients: 1 box dry lasagna noodles (broken into 2-inch pieces); 3/4 cup basil pesto; 3 cloves garlic (grated); 1 tablespoon fresh thyme leaves; 2 teaspoons dried oregano; chili flakes (to taste); 2 cups whole milk; 2 cups spinach (chopped); kosher salt (to taste); black pepper (to taste); 1 1/3 cups shredded mozzarella cheese; 1 cup shredded provolone cheese; 1 cup whole-milk ricotta cheese; 1/2 cup heavy cream; 1/2 cup sliced pepperoni (optional); 1/2 cup grated Parmesan; fresh oregano, thyme, or basil (for serving)

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There’s something delightfully rebellious about turning a comfort-food classic into a weeknight-friendly sheet pan meal. This Sheet Pan White Pesto Lasagna keeps everything you love about a baked lasagna—creamy cheeses, tender noodles, bright herb flavor—then flattens it into a single tray so you can feed a crowd with minimal fuss. It’s perfect for a cozy family dinner, a potluck contribution, or meal prep that feels a little more special than the average leftovers. The assembly is straightforward, and the result is layered, bubbly, and golden on top in the best possible way.

Why this Sheet Pan White Pesto Lasagna works

Instead of traditional red sauce, we’re using basil pesto mixed into a white, garlicky sauce for a brighter, fresher flavor profile. The broken lasagna noodles mimic rustic pasta layers, and the milk, cream, and ricotta produce a silky bechamel-like base. Spinach adds color and veggies, while shredded mozzarella and provolone melt into a beautiful blanket. A sprinkling of parmesan and quick broil finish the dish with a savory, slightly crisp top. If you choose the optional pepperoni, pick a plant-based or poultry alternative to keep the entire dish aligned with dietary needs; otherwise it’s just as delicious without it.

Ingredients

▢1 box dry lasagna noodles (broken into 2 inch pieces)
▢3/4 cup basil pesto
▢3 cloves garlic, grated
▢1 tablespoon fresh thyme leaves
▢2 teaspoons dried oregano
▢chili flakes (to taste)
▢2 cups whole milk
▢2 cups chopped spinach
▢kosher salt and pepper (to taste)
▢1 1/3 cups shredded mozzarella cheese
▢1 cup shredded provolone cheese
▢1 cup whole milk ricotta cheese
▢1/2 cup heavy cream
▢1/2 cup sliced pepperoni (optional; use a poultry or plant-based alternative)
▢1/2 cup grated parmesan
▢fresh oregano, thyme or basil, for serving

Equipment

Large rimmed sheet pan (roughly 13×18 inches)
Large mixing bowl
Measuring cups and spoons
Wooden spoon or spatula
Grater (for fresh parmesan if desired)
Foil (optional, for covering)

Prep notes

Break the dry lasagna noodles into roughly 2-inch pieces before you begin. Grate the garlic so it incorporates smoothly into the sauce. If your pesto is especially salty, taste the sauce before adding extra kosher salt. The spinach can be fresh and chopped; it will wilt into the warm sauce during baking. For the optional pepperoni, a poultry or plant-based substitute is recommended so the flavor complements the cheeses without conflicting with dietary needs. This recipe is forgiving: if it looks a little saucy before baking, that moisture will be absorbed as it bakes and the cheeses melt into a cohesive casserole.

Step-by-step instructions

1. Preheat and prep the pan. Preheat your oven to 375°F (190°C). Lightly grease a large rimmed sheet pan so the lasagna won’t stick; set it aside.

2. Combine the wet ingredients and seasonings. In a large mixing bowl, whisk together 2 cups whole milk, 1/2 cup heavy cream, and 3/4 cup basil pesto until smooth. Stir in 3 grated garlic cloves, 1 tablespoon fresh thyme leaves, 2 teaspoons dried oregano, and a pinch or two of chili flakes depending on how much heat you like. Season lightly with kosher salt and freshly cracked black pepper; remember you can adjust salt later after tasting the finished mixture.

3. Add the cheeses and spinach. To the pesto-milk mixture add 1 cup whole milk ricotta cheese, 1 1/3 cups shredded mozzarella, and 1 cup shredded provolone. Stir until the cheeses are evenly distributed and create a creamy, slightly thickened sauce. Fold in 2 cups chopped spinach so it’s well mixed throughout the mixture.

4. Incorporate the noodles. Add the broken 1 box dry lasagna noodles (2-inch pieces) into the bowl with the saucy cheese mixture. Use a wooden spoon or spatula to gently toss everything together until the noodle pieces are coated and spread with sauce. The raw noodles will absorb moisture during baking, so make sure they are evenly mixed with the liquid.

5. Layer in the pan. Pour the noodle-and-sauce mixture into the prepared sheet pan, spreading it into an even layer with the back of a spoon or offset spatula. If you’re adding the optional sliced pepperoni substitute, scatter the 1/2 cup evenly over the top now so it can warm and meld with the cheese as the dish bakes.

6. Finish with parmesan and a final check. Sprinkle 1/2 cup grated parmesan over the entire surface. Give the assembled pan a gentle shake or tap on the counter to help settle the noodles and remove large air pockets. If the top looks dry in a few spots, you can drizzle a tablespoon or two of the remaining milk or cream across those areas, but avoid making the pan overly wet.

7. Bake until bubbly. Place the sheet pan in the preheated oven and bake for 25–30 minutes, or until the edges are bubbling and the top has turned a light golden color. Ovens vary, so start checking at 25 minutes; if the top is browning too quickly before the center is done, loosely tent the pan with foil and continue baking until set.

8. Broil for a golden finish (optional). For a more browned, slightly crisp top, switch the oven to broil for 2–3 minutes at the end of baking. Watch it closely to prevent burning; the cheeses should become bubbly and take on a golden brown hue.

9. Rest and garnish. Remove the sheet pan from the oven and allow the lasagna to rest for 8–10 minutes. This helps the sauce thicken and makes slicing easier. Scatter fresh oregano, thyme, or basil leaves across the top just before serving for an herbaceous finish.

Troubleshooting and tips

If your top browns too fast, tent loosely with foil and continue baking until the center is set.
If the noodles seem very dry before baking, stir in an extra tablespoon or two of milk or cream to ensure even hydration.
Make sure to break the noodles into roughly 2-inch pieces; pieces much larger than that will create uneven layers and take longer to cook through.
Use freshly grated parmesan for the best melt and flavor; pre-grated cheese sometimes contains anti-caking agents that affect texture.
Leftovers keep well in an airtight container in the refrigerator for 3–4 days and reheat in a 350°F/175°C oven until warmed through.

Serving suggestions

Slice this Sheet Pan White Pesto Lasagna into squares and serve with a crisp green salad, lemony roasted vegetables, or a simple bowl of marinated olives. A bright squeeze of lemon over the finished slices or a shower of extra fresh herbs adds lift and contrast to the creamy layers. It’s also wonderful cold the next day for a quick, satisfying lunch.

Make-ahead and storage

You can assemble the dish through step 6 and refrigerate it, covered, for up to 24 hours before baking. If chilled, add an extra 5–8 minutes to the baking time to account for the cold center. Once baked and cooled, store leftovers in an airtight container in the refrigerator for 3–4 days. Reheat individual portions in the microwave or warm the whole pan in a 350°F oven until heated through.

Notes on variations

For a lighter version, substitute whole milk with a mixture of milk and a lower-fat milk alternative, but keep the ricotta and cheeses to maintain creaminess.
Swap the spinach for baby kale or add a cup of sautéed mushrooms for an earthy boost.
For a bolder herb punch, stir an extra tablespoon of chopped fresh basil into the ricotta mixture before baking.
If you prefer a non-dairy version, use a dairy-free ricotta, plant-based shredded cheeses, and a nondairy cream alternative—though this will alter texture and flavor.

Final thoughts

This Sheet Pan White Pesto Lasagna is a lovely twist on two favorites—pesto pasta and baked lasagna—combined into one generous tray. It’s unfussy yet special: creamy ricotta and melty mozzarella mingle with fragrant pesto, garlic, and herbs, while the broken noodles create a rustic, pillowy texture. Whether you’re feeding a group or planning several ready-to-heat dinners for the week, this sheet pan recipe hits all the comforting notes with way less stirring and stacking than a traditional lasagna. Serve it warm with a bright salad, and savor those golden, cheesy edges.

Enjoy.

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Sheet Pan White Pesto Lasagna.

A quick, layered sheet-pan lasagna made with white pesto sauce, cheeses, spinach, and optional pepperoni for an easy family-style bake.

Prep Time25

Cook Time25

Total Time50

Servings: 8 servings

Ingredients

1 box dry lasagna noodles broken into 2-inch pieces
3/4 cup basil pesto
3 cloves garlic grated
1 tablespoon fresh thyme leaves
2 teaspoons dried oregano
chili flakes to taste
2 cups whole milk
2 cups spinach chopped
kosher salt to taste
black pepper to taste
1 1/3 cups shredded mozzarella cheese
1 cup shredded provolone cheese
1 cup whole-milk ricotta cheese
1/2 cup heavy cream
1/2 cup sliced pepperoni optional
1/2 cup grated Parmesan
fresh oregano, thyme, or basil for serving

Instructions

Preheat the oven to 375°F (190°C) and grease a straight-sided 12 x 17-inch baking sheet; set aside.
Bring a large pot of salted water to a boil. Cook the broken lasagna noodles until al dente, about 4–6 minutes, then drain in a colander.
Return the hot noodles to the pot. Add 1/2 cup of the basil pesto, grated garlic, fresh thyme, dried oregano, and chili flakes; toss to combine.
Pour in 2 cups whole milk and add the shredded mozzarella. Toss until the cheese is mostly melted and coats the noodles. Stir in chopped spinach and season with kosher salt and black pepper to taste.
In a small bowl, mix the ricotta with the remaining 1/4 cup basil pesto until combined.
Spoon the noodle mixture onto the prepared baking sheet, spreading it into an even layer. Dollop the pesto-ricotta mixture over the noodles, tucking some dollops slightly under the noodles.
Pour 1/2 cup heavy cream evenly over the pan. Sprinkle shredded provolone across the top, then arrange sliced pepperoni if using, and finish with grated Parmesan.
Bake at 375°F (190°C) for 20–30 minutes, until the cheese is bubbly and lightly golden. Remove from oven and top with fresh oregano, thyme, or basil before serving.