An unusual lasagna might be the key if you got the basic principles of making lasagna down pat already. Try a spicy roasted vegetable lasagne?
You could look at making a quick chocolate tart for dessert. There are some simple recipes out there like Jamie Oliver’s recipe in his first cookbook where he offers baked or unbaked chocolate tart recipes.
The great thing about tarts is that you can make it in installments if you are busy: make the pastry a day before and then just make the filling on the day, pour in and bake.
I myself have had men fall for me through eating spicy stir-fried noodles, southeast asian style. Quick to cook but need some time for the finicky prep.