Bring a large pot with water to boil. Add the sea salt + olive oil and blench the lasagne for 3 minutes. Remove the lasagna sheets from the boiling water and let them dry on a kitchen towel.
Prepare all the ingredients on a table/countertop and start assembling the lasagna.
At the bottom of a deep baking dish drizzle some olive oil and one handful of breadcrumbs.
Create a layer of pasta. Top with the zucchini slices and a layer of tomatoes. Top with ricotta + fontina or provola.
Cover with a second layer of pasta. Repeat the zucchini layer + tomato layer + cheese layer. This time also add the ham in pieces.
Cover with the third layer of pasta. Top with chopped fresh tomatoes, ricotta, parmesan cheese and a drizzle of olive oil.
Bake in a preheated oven to 400F for 20/25 minutes. Let it cool down 5 minutes and enjoy!