Can you please review the following and tell me if this is a good meal for my dog?

45% protein (either ground sirloin or fresh boiled chicken)
45% veggie mix (canned sweet potato, frozen green peas, scrambled egg)
10% white rice

I then mix in a bit of chicken broth and 1 capsule Thorne Labs Gastriplex and 1 capsule Thorne Labs probiotic.

So far he is doing well, stomach wise, but want to make sure I am not missing any key nutrients.

Would I be better off just mixing the ground sirloin with a dry food (like Canidae) and not using the homemade veggie mix?

No... Dog food companies go through tons of paper work to ensure the food is safe, well except for wal marts ol'roy. Higher brand foods have more vitemens, e.t.c. then any home made remedies can produce. Years ago it may have worked, but with all the dieses going around, from dogs being brought in from all over the country, the home made deal cant compete. Stick with Iams, Diamond, Eukanuba e.t.c. Much cheaper in the long run......Thats what I think!