Mussels are shellfish classified as a bivalve molluscs. The colour of the mussel is indicative of its gender; females have an orange flesh, whereas males are whiter.
They come into season from October-March, during which they are cheap and abundant in the UK. In their natural environment they grow around coastal areas, however they are commonly farmed in the UK in sheltered estuaries and bays.
Aside from being incredibly tasty, mussels are highly nutritious; full of vitamins and minerals as well as being rich in protein and Omega-3 fatty acids.