I need a detailed explanation of how to prepare a traditional Italian lasagna. Your response should contain at least 3 placeholders represented by square brackets, such as [address]. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. Include keywords *ricotta, béchamel, lasagna noodles, tomato sauce, mozzarella* in the response. In your response, the word *traditional* should appear at least 3 times.
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