Welcome to the forum
Must admit I'm trying to control 3 different diets at the moment and here is how I work it.
Stitch my moggie is on Hills XD prescription diet for various allergies (dry food only). This is left out freely for her in the Utility room. My three bengal males (9 months) are on Whiskas wet meat and now (instead of their usual JWB) are eating Hills XD prescription diet as dried - I've spoken to my vet and he has advised its perfectly fine for the boys to eat this. The boys are then given their wet meat 2 x per day (both when Stitch is outside). All are fed chicken and white fish 3/4 times per week as treats.
Picked up Nova (my female bengal 14 weeks) on Christmas Eve. I am feeding her 3 x per day seperately to all other cats but am fortunate in that I turned my spare room over the bengals as theirs so use this. Plan will eventually be to get Nova on the same diet as the boys albeit she will be on kitten variety for some time to come.