I've been using a method I saw on a FB reel. It's tasty and much less time-consuming than the traditional method, but not for purists.
Basically, you make a bolognese in the way you normally would, but a bit more 'wet'. If possible, make it in a pot that goes on the hob and into the oven or under the grill. I make it in one of those shallow round cast-iron pots, and use Quorn mince, as my husband is vegetarian, but that is obviously up to you. If you usually use a jar of sauce, go ahead, or make your own if that's your preference. Whatever works for you.
Then you break lasagne sheets (snap them into largish bite-size bits - maybe three to a sheet) and drop these separately into the bolognese, stirring so they don't stick together as they cook. Then add Philly cheese or Boursin and stir it in (I prefer Boursin as I love garlic, but have used both and either works well). Sprinkle a mix of parmesan and cheddar on top and either grill the hot lasagne or let it cool until you want to eat it and bake it in the oven. Serve when the cheese has browned.
It doesn't look quite as professional as a more traditional lasagne, but tastes good and only uses one pot, so there is very little washing up.