This was nice and I wish I had remembered to take a photo.
some white fish (I used basa)
a small amount of butter, softened
10ml lime (or could be lemon) juice (from a bottle is fine and much more frugal)
a bit of garlic puree
some thyme (or other herb of choice)
A few tomatoes - squidgy ones are fine - halved/quartered
salt and pepper to season
spray a bit of oil around a small, oven proof dish.
Place the fish in the dish.
Mix together the butter, juice, garlic and thyme and smear over the fish
Scatter the tomatoes on top and season to own taste.
Cover with foil and bake at around 160-170 C for about 20 mins
If you want, cook it uncovered for the last five mins to evaporate some of the liquid, but be careful the fish doesn't dry out.