Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make lasagna with bechamel sauce [title] In a large pot heat the butter over medium high heat. [step] Add the bacon and ham and sauté until caramelized and light brown, about 10 minutes. Add the ground meats and cook over high heat until well-browned, stirring constantly, about 20 minutes.

Ending1: [title] Add the onions, carrots, celery, and mushrooms and cook until soft, about 5 minutes. [step] Add the garlic, cloves and nutmeg to the pan and cook for 2 minutes. Ending2: Stir occasionally to prevent any peanut butter from escaping from this marinade. You may also scatter the vegetables with the melted butter, ending up with a creamy sauce like wopt. Ending3: [substeps] This is really all you need to use so long as you cook easily. If you're using bacon bones, you can skip the ham and substitute something else. Ending4: [substeps] Make sure there is a full pan of water on the stove and a lid on so that it does not boil over. If you use a double boiler, the temperature will rise rapidly, ruining the bechamel sauce process.

Answer format: ending1/ending2/ending3/ending4