Hi, I am new to gardening so please excuse my ignorance!!....I have grown some veggies but in this pot I forgot to mark what was in it!!...I know there were some speedy salad seeds in there and I thought radish but I know they are not radish as I have them in another pot....any ideas??!!!

The leaves look as if they are from Kohl Rabi, which is very fast maturing.
They are definately not beet or radish.

If it is kohl rabi, you'll need to get them transplanted as soon as possible as it looks as if they are bolting to seed!!!
However the whole plant is edible so even if the vegtable stem/root doesn't come, then you can eat the leaves as you would for spinage or cabbage.

Kohlrabi - Wikipedia, the free encyclopedia