The Humble Lemon ..

.. is a good friend in the kitchen. It gives acidity (sourness, tang) Some of the things the lemon will do:

# good with any kind of fish

# lemon juice and chopped fresh herbs (whatever -- parsley, dill, coriander, thyme ..) are enough to give flavour to plain chicken

# lemon juice with soy sauce forms a basic asian flavouring to which you can add whatever other flavours you wish, if you wish

# lemon juice, olive oil and a whisper of salt = basic salad dressing

# lemon + garlic + oregano or rosemary = basic Greek flavouring, lovely for lamb or chicken