Easy vegetable lasagna recipe filled with a layer of sautéed vegetables, spinach and ricotta, a simple tomato sauce, and a cheesy topping.
Brush the base and sides of a large baking dish (28 cm x 22 cm or 2.2 liter) with olive oil. Spoon 1,5 ladleful of the sauce (1/2 cup / 125 ml) over the base and spread it out into an even layer. Layer 3 lasagna sheets on top (overlap their edges as necessary).
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