Sometimes, having a dog can be time consuming. But why should boring tasks like feeding time get in the way of snuggling with them in the morning, or going on long walks?
Meal prep doesn't just have to be for humans, doggos can benefit too.
Here's a quick Instructable for dog food meal prep.

Supplies

Dog Food
Small Tupperware
Kitchen Scales
(+ A doggo to feed)

Step 1: Gather Your Equipment

The ideal tub is sealed, and as small as possible. Minimal wasted space means more space in travel bags for doggy toys and miniature tennis balls.

The ideal food is dry and tasty (to the dog - optional to be tasty to humans...). Dose size should be on the side of the bag, unless the vet specifies otherwise.

The ideal scales show the weight. Obviously.

Step 2: Weigh Out the Food

Remember to tare/zero the scales once the empty tub is on them. Pour the food, make it as accurate as possible.
If you have a well-sized scoop/cup/etc., you may not need to weigh it, just fill to the required level.

Step 3: Repeat As Necessary

Economies of scale says the more you make the higher the efficiency. So basically, do as many as you can at once. I only have 5 tubs, and one is for doggo treats.

Step 4: Feed the Doggo!

No point meal prepping if you don't feed the doggo.
Whenever you're next running late or are away with the dog for the weekend, pop out the prepped tub and let doggo go mad on it.