01 -
Chop the onion finely and crush the garlic. Cook them in a pot with olive oil until they turn golden. Stir in the tomato sauce, add salt and pepper, and let it simmer on low for about 15 minutes.
02 -
Grate the zucchini coarsely. Cook them in a pan with some olive oil and garlic. Once done, mix in ricotta, a pinch of fresh nutmeg, salt, and pepper (off the heat).
03 -
Heat up your oven to 180°C. Take a baking dish and start with a spoonful of the tomato sauce. Place a layer of pasta sheets, followed by a third of the zucchini-ricotta mixture and a third of the sauce. Repeat this layering two more times.
04 -
Top everything with a layer of grated parmesan (you can sprinkle some between layers too). Bake for 30 to 40 minutes, or until you see the lasagna develop a nice golden crust.