I have made food for my dog long ago , nowadays after he died and i rarely see my dogs after they moved to a farm with my other family members i dont cook for my dogs at all.
Back then though ( 4 years ago ) i would cook long grain white rice , with 0 salt and mix in alot of cheese ( my dog loved cheese ) , also loved chicken...
He also loved peanut butter icecream so he would snack on that sometimes too.
Oh something I learned... when your dog is throwing up gatorade actually helps <_< im serious , when ever our little boy would get sick , throw up and stuff we would give him gatorade , to keep him hydrated.... it worked and we kept that method. Also told other dog lovers about it , but they still dont believe XD.