Helena's Tuna Mornay

125g butter
1 cup plain flour
1 litre milk
1 onion, finely chopped
1 large tin tuna in brine, drained
1 large tin creamed corn
250g grated cheese
1 tablespoon mixed herbs
1 tablespoon ground pepper
1 teaspoon salt

Method: Melt butter and fry onion until golden, add flour and stir for a minute. Add milk slowly using a whisk, and simmer, whisking until thickened and smooth. Season to taste. Add remaining ingredients and cook through, stirring until hot.

Hint: Serve with wholemeal toast.

Source: Royal Adelaide Hospital Community Children's Centre (RAHCCC) Cookbook, 2nd edition (Adelaide, 2008), p.101.