I dont know if you like fish, but when I do a nice dinner for h & me, once dc are in bed, I do this one and it is really tasty, without too much effort.
Pan fry some cod fillets, keep warm. Chop some chorizo into small pieces and fry, with some chopped up spring onions, garlic clove, chopped. When chorizo has browned, add some chopped peppers from a jar, drained can of green lentils, some lemon juice and some chopped parsley. Eat with the cod - scrummy!
Failing that, I would do a nice rump steak with roast veg and couscous.