Brussels in Dec with kids

[NotPennysBoat]

Off for a mini break to Brussels in Dec with DH and DC 11 & 9. Only there for two nights so don't want to travel outside the city.
Obviously the Christmas markets will be on but any recommendations for other places to see/visit and in particular places to eat? The kids aren't hugely adventurous cuisine-wise, but somewhere with a lovely setting, view or atmosphere would be great.

I went in jan last year and had a great time. The history of Belgium museum is great. I walked to the EU building and went to that museum. Lots of cafes. Quite small easy to get around.

Kids eat free in Chez Leon in the Rue de Bouchers. Traditional Belgian fare. The cafe at the top of the Musical Instruments museum has a fab view - you don't need to go into the museum itself. Comic Strip museum is good. Wolf Food Hall.
ComoTapas has a Yo-Sushi type conveyor belt, but with Tapas. For Art-Nouveau, the Falstaff and Cirio brasseries near the Bourse. My daughter loves the House of European History. Magritte Museum.