Preheat the oven - set your oven to 180°C (350°F)
Spread a thin layer of pesto-béchamel on the bottom of your baking dish to keep the pasta from sticking.
Add the first layer of fresh lasagna sheets, followed by more béchamel and some pesto. Continue alternating pasta + sauce until everything is used up.
Top the final layer generously with Parmesan.
Bake: Place in the oven for 20–25 minutes, or until the top is lightly golden and the sauce is bubbling at the edges.
Rest and serve. Let the lasagne sit for 5–10 minutes before slicing — this helps it set and makes it easier to serve beautifully.