Norwegian offer different buy on board menus for each of their European bases, I think the options are good and love the fact that you can buy a hot meal inflight on a European flight.
ALICANTE TO MUNICH
Once I ordered my meal onboard, it took the cabin crew about 15 minutes to deliver it.
The beef stroganoff with wild rice didn’t present so well; however, it made up for it in taste. It was served piping hot, and cost €12: €7 for the hot meal, €2 for the water and €3 for the fruit. I guess when compared to airport food prices the Norwegian product offers the same value as dining in the airport.
I had a pleasant experience flying low cost across Europe, the aircraft was clean, the service was great and the food was good.