I thought I’d planted courgette!🤔

hi I thought I’d planted courgette, I have grown them before and the plants look very similar.  Unfortunately I no longer have the packet nor do I remember the name or supplier. Can anyone recognise what I have here? The skin is very hard, rather like squash. Both of these fruits are  from the same seed packet. Presently there are about 20 on the plants and the yellow one here is the biggest at the moment. I’m stumped, thought at first they may be a round courgette but now thinking they are a type of squash. Can anyone help, please?