Prepare the sweet potatoes by peeling and dicing them, then place them in a large bowl. Add the olive oil, honey, sea salt, and freshly cracked pepper to taste. Toss well to coat evenly.
Pour sweet potatoes onto a baking sheet and place in the oven to roast for 30 minutes, stirring halfway through the baking time. Remove from oven and set aside to cool completely.
Cook the farro according to the package instructions in a small saucepan of salted boiling water. Drain and set aside to cool completely.
Next, cook the tri-colored quinoa according to the package instructions in a small saucepan of salted boiling water. Set aside to cool completely.
When ready to serve, combine the finely chopped kale, cauliflower, cooled sweet potatoes, chickpeas, farro, quinoa, apple slices, radish slices, dried cranberries, toasted pumpkin seeds, and walnuts together in a large serving bowl.
Drizzle the top with some of the well-whisked vinaigrette, to taste; toss to coat evenly.
Serve immediately with freshly cracked black pepper on top. Enjoy.