She won through from among nine regional winners at the final held at Food Services Wing, Defence Logistics School, Worthy Down near Winchester, Hampshire.
Watkin claimed her place in the national final for the third time after winning the Eastern regional final held Barnfield College, Luton back in January.
She works for Bedfordshire County Council and served up to judges a main course of Spanish chicken cocido (chicken, vegetable and chickpea stew flavoured with saffron served with chorizo tortilla and rustic bread) followed by Crema de Sant Josep (madeleine sponge baked in citrus caramel egg custard served with orange, strawberry and mint salsa).
The winner of the Highly Commended Main Course was Shereene Weston, the London region winner.
Shereene, who works at St Mary Magdelen Catholic Primary School and is employed by Chartwells on behalf of the London Borough of Lewisham, cooked a main course of ‘sticky kicky chicken’ (spicy free range chicken thigh with roti bread, healthy slaw, sweet potato wedges and pepper and lime salsa).
The winner of the Highly Commended Dessert was Bridget McCulla, the North East & Scotland regional school chef of the year, who works at Jarrow School for South Tyneside Council Catering Services and served up a tropical fruit trio (coconut-infused steamed sponge pudding with pineapple pannacotta and warm mango sauce).
The Marketing Award went to Kate Davies, the Welsh Region winner who works at St Gwladys Primary School, Bargoed for Caerphilly County Borough Council.
There was disappointment for Debbie Sidlow of Meadowbank Primary School, who works for Manchester Fayre and won through to the final as the winner of the North West Region round. She missed the final for medical reasons and left the nine other regional finalists to compete on the day.
The competition, organised annually by LACA (Lead Association for CAtering in Education), is sponsored by Maggi from Nestlé Professional.
This celebrated annual competition aims to show the high quality of school meals to parents and the important contribution they can make to not only the health and wellbeing of their children but also their physical and educational attainment.
The 2014 National Finalists were:
East Midlands School Chef of the Year 2014
Gail Boyce, Bolsover C of E Junior School, Bolsover (Derbyshire CC)
Eastern School Chef of the Year 2014
Tanya Watkin, Woodland Middle Academy School, Flitwick, Beds (Beds CC)
London School Chef of the Year 2014
Shereene Weston, St Mary Magdelen Catholic Primary School, Lewisham (LB of Lewisham)
North East & Scotland School Chef of the Year 2014
Bridget McCulla, Jarrow School, Tyne & Wear (S Tyneside Council)
North West School Chef of the Year 2014
Debbie Sidlow, Meadowbank Primary School, Manchester (Manchester City Council) – Unable to take part on the day
South East School Chef of the Year 2014
Alison Dombrick, Bentley Primary School, Bentley, Hampshire (HC3S)
South West School Chef of the Year 2014
Jodie Pearce, Wembury Primary School, Plymouth, (Devon Norse)
Welsh School Chef of the Year 2014
Kate Davies, St Gwladys Primary School, Bargoed (Caerphilly CBC)
West Midlands School Chef of the Year 2014
Vicky Brammer, Crescent Academy, Stoke on Trent (Stoke on Trent Council)
Yorks & Humber School Chef of the Year 2014
Katherine Breckon, Westcliffe CP School, Whitby (N Yorkshire CC)