can I mix lamb mince and beef mince for a spag bog?h

[zookeeper]

Or will it taste vile?

It will taste wrong somehow.

If you don't have enough beef mince, can you bulk out with anything else, like lentils?

Or make a chilli instead of bolognese, with lots of kidney beans?

I would do it.

Keema is nice with a mixture of Lamb and Beef mince.

Why on earth not? Flavours would blend, texture interesting. (IMO)

yes, my mum always used to make bol with lamb mince and it was divine.