Place whitefish on a parchment-lined baking sheet and place the sheet in a preheated oven at 350°F. Cook for 15-20 minutes or until fully cooked. Let cool to the touch.
Steam or boil green beans and broccoli until soft. Let cool.
Choose a pot that will hold all the potatoes, add water and bring to a rapid boil. In the meantime, dice the russet and sweet potatoes (do not peel) to an appropriate bite size for your dog. Add potatoes to the water and lower heat to a simmer. Cook for 10-15 minutes or until fully cooked (soft to the touch). Add ice to stop the cooking process. Drain. Let the potatoes cool to the touch.
In a large mixing bowl, combine all ingredients, including safflower oil, lemon juice, flaxseed meal and dried seaweed. Slowly sprinkle in DIY Nutrient Blend until fully incorporated. Mix thoroughly.
Portion into individual serving sizes and store in freezer or refrigerator. Stored in the refrigerator, this recipe will stay fresh for up to 4 days. In the freezer, it can be stored for up to 3 months.