well 'our' flans can be sweet or savoury - they have a base and 'walls' - sweet ones can be pastry or sponge.
Quiche - of which one of the most famous is quiche Lorraine - is the French word for our savour flans! QL is a fancy name for what the British call egg and bacon pie! It is a pastry shell with a savoury egg custard containing small bits of fried bacon or ham.
Pudding is another name for desserts in the UK, as well as savoury puddings like Steak and kidney pudding, or white pudding or black pudding (sausage type of food).
It's also interesting that we in the UK often use the French form for vegetables and dishes, whilst in the US and also in some areas of Aus, you use the Italian term, eg we say courgette, you say zucchini! And what we call aubergine, you call eggplant.
Definitely we are two nations divided by a common language!