I've not come across that brand of dog food before - is it a dried food/kibble type? Hamsters will enjoy dog biscuits (such as biscrok) and can eat cat/dog food, though we tend not to give the wet food as it is messy and can spoil. We do feed cat and dog biscuits though (we check they dont have garlic in them - its not good for hamsters)
I feed my hams porridge made up with lactol as a treat and they all love it - small amounts are fine.
Other things they enjoy
boiled/scrambled egg, tofu, chicken, mealworms,
plus of course veg such as brocolli, carrot, sweet peppers, sweetcorn
Edit - opps - you said the dog food was fresh doh