Shred carrots in food processor or chop into tiny dice by hand. Transfer to pressure cooker. This will be at the bottom of the pressure cooker to prevent burning.
Then, change to an S-blade and process cooked or soaked beans to a medium coarseness.
Add the ingredients to pressure cooker in order: beans, rice, lentils, oats (for dogs over 7 years old, if using) peas, green beans, broccoli, and spinach plus water.
Cook for 12 minutes with natural release. It can take almost 45 minutes for the pressure to come down and release.
Remove the pressure cooker lid and stir in chia seeds and ground flaxseed. If adding, stir in 1 can of organic pumpkin and 2 or 3 cooked sweet potatoes. Cool and put into individual containers with tight lids and freeze for future use.