inanimate objects are not creatures
Technically you could extrapolate. Bread would have to be wheat, and brisket would be cow. So you're crossing cow+wheat.
Tea and coffee would be the plants.
Cupcake and brownie are harder to cross. Both contain chocolate, so what's the real difference? Cupcakes have more flower, brownies have more eggs. It would have to be a double cross between a cocoa tree+chicken and a cocoa tree+wheat.
Cat+computer is just a cyborg though. Can't help you there.
