Place tomatoes, onion, garlic, parsley and mint into a medium sized bowl.
Mix through egg and then add sifted flour. Stir mixture well until completely combined. Leave to rest for 20 minutes.
In a large, deep non stick pan heat 8cm of oil until hot. Test with a small amount of batter to see if it sizzles.
Place tablespoon measure of mixture into the fry pan. Fry one side until golden and then turn over, cook the other side. Remove from pan and drain on paper towel. Repeat with the remainder of your mixture.
Serve immediately with lemon wedges and yoghurt with mint.