We've been dairy free for 5 years now (since allergic ds2 was weaned). There are very few dishes we haven't found a way to make dairy (and egg) free - including pancakes!
The nicest dairy free cheese is tofutti, which is better when melted/cooked, but makes a respectable cheese on toast. The tofutti cream cheese is very nice and can be used as a substitute for Philadelphia in many recipes on the Philadelphia web-site (including their cheese cake).
Waitrose Nice biscuits are dairy free, as are Fox's party rings. Dove Farm do nice dairy free flapjack, or you can make your own using dairy free spread. Tesco value soft spread is dairy free too. Other sweet stuff - I make chocolate cornflake cakes with dark chocolate. Asda also do a nice dark chocolate spread which is dairy free.
I make pizza using tofutti soya cheese, cheese straws using tofutti soya cheese. Lasagne using oat milk to make the sauce and soya cheese on top.
I have an ice-cream maker, which I use to make ice-cream using pureed mango with coconut cream and a little sugar.
Korma can be made using coconut cream as a substitute for cream/nuts. Otherwise, shephards pie, fish pie are possible using oat milk for the mash and dairy free spread. My ds's also enjoy a roast dinner, which is easy dairy free.