1/4 cup of chopped frozen veg (peas, carrot, broccoli, snow peas, cauliflower)
Just so that you know, cells in all vegetable matter is covered by a think layer of cellulose. This cellulose must be crushed open during the eating process in order for the nutrients in the vegetables to be available for digestion. This is called bio-availablity. The nutrients in vegetable matter are not bio-available to our dogs because they don't have the flat molar teeth that plant eating animals do.
Unless you actually 'juice', these vegetables, they do absolutely, positively nothing for your dog. In fact, you are throwing your money out the window entirely.
Just so you know.